Finding the Third Proportional to 11,397.38 and 17,128.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,397.38 : 17,128.13 = 17,128.13 : x
2. Step 2: Convert to fraction form
   11,397.38/17,128.13 = 17,128.13/x
3. Step 3: Cross multiply
   11,397.38x = 17,128.13 × 17,128.13
4. Step 4: Simplify right side
   11,397.38x = 293,372,666.02
5. Step 5: Solve for x
   x = 293,372,666.02/11,397.38
6. Step 6: Final answer
   x = 25,740.37