Finding the Third Proportional to 31,510,736 and 68,399,332

Step by Step Solution

1. Step 1: Write the proportion equation
   31,510,736 : 68,399,332 = 68,399,332 : x
2. Step 2: Convert to fraction form
   31,510,736/68,399,332 = 68,399,332/x
3. Step 3: Cross multiply
   31,510,736x = 68,399,332 × 68,399,332
4. Step 4: Simplify right side
   31,510,736x = 4,678,468,618,046,224
5. Step 5: Solve for x
   x = 4,678,468,618,046,224/31,510,736
6. Step 6: Final answer
   x = 148,472,210.17