You have been offered a 5 year investment at $50000. It will pay $3000 at the end of year 1 and $4500 at the end of year 2 and a fixed but currently unspecified cash flow X, at the end of year 3 through 5. You have a 3% rate of return for the 5 years. What cash flow must the investment return from years 3 to 5. What is X?