Finding the Third Proportional to 14,686.31 and 31,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,686.31 : 31,711.50 = 31,711.50 : x
2. Step 2: Convert to fraction form
   14,686.31/31,711.50 = 31,711.50/x
3. Step 3: Cross multiply
   14,686.31x = 31,711.50 × 31,711.50
4. Step 4: Simplify right side
   14,686.31x = 1,005,619,232.25
5. Step 5: Solve for x
   x = 1,005,619,232.25/14,686.31
6. Step 6: Final answer
   x = 68,473.23