Finding the Third Proportional to 11,515.50 and 17,607

Step by Step Solution

1. Step 1: Write the proportion equation
   11,515.50 : 17,607 = 17,607 : x
2. Step 2: Convert to fraction form
   11,515.50/17,607 = 17,607/x
3. Step 3: Cross multiply
   11,515.50x = 17,607 × 17,607
4. Step 4: Simplify right side
   11,515.50x = 310,006,449
5. Step 5: Solve for x
   x = 310,006,449/11,515.50
6. Step 6: Final answer
   x = 26,920.80