Finding the Third Proportional to 31,631,288 and 69,063,472

Step by Step Solution

1. Step 1: Write the proportion equation
   31,631,288 : 69,063,472 = 69,063,472 : x
2. Step 2: Convert to fraction form
   31,631,288/69,063,472 = 69,063,472/x
3. Step 3: Cross multiply
   31,631,288x = 69,063,472 × 69,063,472
4. Step 4: Simplify right side
   31,631,288x = 4,769,763,164,694,784
5. Step 5: Solve for x
   x = 4,769,763,164,694,784/31,631,288
6. Step 6: Final answer
   x = 150,792,568.57