Finding the Third Proportional to 8,782.17 and 13,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,782.17 : 13,499.31 = 13,499.31 : x
2. Step 2: Convert to fraction form
   8,782.17/13,499.31 = 13,499.31/x
3. Step 3: Cross multiply
   8,782.17x = 13,499.31 × 13,499.31
4. Step 4: Simplify right side
   8,782.17x = 182,231,490.70
5. Step 5: Solve for x
   x = 182,231,490.70/8,782.17
6. Step 6: Final answer
   x = 20,750.16