What if I have travelled around the world, get a degree in Business? I still have $200million!

I would make my mom proud. I might be really lucky but I should show them that I can do things by my own. My money would be wasted on anything but I have to work hard to maintain my established new lifestyle. This is going to be hard, but achievable. Knowing that I'm lack of experience, I would gladly work for a big company. I'm going to make a big company so I need to take closer look on how they manage things. The company that I'm looking for is the company that has green technology. I'm aware of enviromental issue and I would like to take part on making a better life but at the same time it must be friendly to the environment. I would like to work in a place like Chipotle or The Body Shop. I still don't have a picture of what kind of business I'm going to make but I found the most important thing is the business must be sustainable for the nature.