What are my chances of getting into MBA program?

What are my chances of getting into a Harvard or Stanford MBA program, noting that my undergraduate GPA was around 3.4, but after college I founded a company, and sold it for 42 million dollars? Do those schools even care about your GPA once you pulled off such a successful business?

They’ll care, but a good GMAT plus such a successful business should definitely outweigh it. Best of luck!