Beat matching 2 very different bpms (Help)

Hello, I saw a video where someone was playing Danza Kuduro - Don Omar and Balada - Gusttavo Lima simultaneously and was wondering how that works? It says Danza Kuduro is at 89 bpm and Balada is at 123 bpm and no matter how much I play around with Serato, I can't seem to make them go on beat.

I'm new to this and was wondering if someone could tell me how you beat match a song that has such a drastic bpm difference without the song sounding like a chipmunk or super slowed down. Thanks!