Finding the Third Proportional to 31,253,087.50 and 67,306,388

Step by Step Solution

1. Step 1: Write the proportion equation
   31,253,087.50 : 67,306,388 = 67,306,388 : x
2. Step 2: Convert to fraction form
   31,253,087.50/67,306,388 = 67,306,388/x
3. Step 3: Cross multiply
   31,253,087.50x = 67,306,388 × 67,306,388
4. Step 4: Simplify right side
   31,253,087.50x = 4,530,149,865,606,544
5. Step 5: Solve for x
   x = 4,530,149,865,606,544/31,253,087.50
6. Step 6: Final answer
   x = 144,950,474.59