Finding the Third Proportional to 11,517.31 and 17,357.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,517.31 : 17,357.13 = 17,357.13 : x
2. Step 2: Convert to fraction form
   11,517.31/17,357.13 = 17,357.13/x
3. Step 3: Cross multiply
   11,517.31x = 17,357.13 × 17,357.13
4. Step 4: Simplify right side
   11,517.31x = 301,269,788.27
5. Step 5: Solve for x
   x = 301,269,788.27/11,517.31
6. Step 6: Final answer
   x = 26,157.99