Finding the Third Proportional to 8,778.38 and 13,132.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,778.38 : 13,132.13 = 13,132.13 : x
2. Step 2: Convert to fraction form
   8,778.38/13,132.13 = 13,132.13/x
3. Step 3: Cross multiply
   8,778.38x = 13,132.13 × 13,132.13
4. Step 4: Simplify right side
   8,778.38x = 172,452,707.02
5. Step 5: Solve for x
   x = 172,452,707.02/8,778.38
6. Step 6: Final answer
   x = 19,645.17