Finding the Third Proportional to 8,658.75 and 13,066.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,658.75 : 13,066.13 = 13,066.13 : x
2. Step 2: Convert to fraction form
   8,658.75/13,066.13 = 13,066.13/x
3. Step 3: Cross multiply
   8,658.75x = 13,066.13 × 13,066.13
4. Step 4: Simplify right side
   8,658.75x = 170,723,622.52
5. Step 5: Solve for x
   x = 170,723,622.52/8,658.75
6. Step 6: Final answer
   x = 19,716.89