Finding the Third Proportional to 31,940,359.50 and 69,485,761

Step by Step Solution

1. Step 1: Write the proportion equation
   31,940,359.50 : 69,485,761 = 69,485,761 : x
2. Step 2: Convert to fraction form
   31,940,359.50/69,485,761 = 69,485,761/x
3. Step 3: Cross multiply
   31,940,359.50x = 69,485,761 × 69,485,761
4. Step 4: Simplify right side
   31,940,359.50x = 4,828,270,981,749,121
5. Step 5: Solve for x
   x = 4,828,270,981,749,121/31,940,359.50
6. Step 6: Final answer
   x = 151,165,204.69