Finding the Third Proportional to 11,715.38 and 17,588.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,715.38 : 17,588.25 = 17,588.25 : x
2. Step 2: Convert to fraction form
   11,715.38/17,588.25 = 17,588.25/x
3. Step 3: Cross multiply
   11,715.38x = 17,588.25 × 17,588.25
4. Step 4: Simplify right side
   11,715.38x = 309,346,538.06
5. Step 5: Solve for x
   x = 309,346,538.06/11,715.38
6. Step 6: Final answer
   x = 26,405.18