Finding the Third Proportional to 9,687.29 and 13,711.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,687.29 : 13,711.27 = 13,711.27 : x
2. Step 2: Convert to fraction form
   9,687.29/13,711.27 = 13,711.27/x
3. Step 3: Cross multiply
   9,687.29x = 13,711.27 × 13,711.27
4. Step 4: Simplify right side
   9,687.29x = 187,998,965.72
5. Step 5: Solve for x
   x = 187,998,965.72/9,687.29
6. Step 6: Final answer
   x = 19,406.77