Finding the Third Proportional to 31,292 and 69,496

Step by Step Solution

1. Step 1: Write the proportion equation
   31,292 : 69,496 = 69,496 : x
2. Step 2: Convert to fraction form
   31,292/69,496 = 69,496/x
3. Step 3: Cross multiply
   31,292x = 69,496 × 69,496
4. Step 4: Simplify right side
   31,292x = 4,829,694,016
5. Step 5: Solve for x
   x = 4,829,694,016/31,292
6. Step 6: Final answer
   x = 154,342.77