Murgatroyd, 29, also shared the news with her fans. "I said yes!!!!!! ? You have my heart forever my love. Love always wins @maksimc," the dancer captioned an intimate photo of the couple in a deep kiss.
Videos of the proposal, posted by an audience member, quickly surfaced.
Afterward, Mergatroyd proudly showed off her gorgeous engagement ring with Chmerkovskiy right beside her.
Their DWTS friends were notably excited about the couple’s engagement, celebrating their impending nuptials.
Sharna Burgess posted a pic of Chmerkovskiy and Murgatroyd sharing a sweet kiss after the proposal, with the celebratory caption, “So this just happened!!!! Ahhhhh I'm so excited for my loves!!@maksimc and @petamurgatroyd it's about bloody time!!!!”
Keo Motsepe also sent his congratulations to the pair, writing, “Congrats @maksimc and@petamurgatroyd on you engagement,see you soon Timon..love you guys.”
Back in May, Chmerkovskiy -- who was previously engaged to DWTS co-star Karina Smirnoff -- spoke to Glamour magazine about rekindling his romance with Murgatroyd after the two ended their relationship in 2013. The two were spotted holding hands earlier that month.
"We're cool," he told the mag at the time. "We're just older. I guess things happen differently when you're older and time's passed and things have happened. I am a very intelligent guy, contrary to what it might seem. [Laughs] I feel different now because we're different."
This would be the first marriage for both. Congrats to the happy couple!