Finding the Third Proportional to 11.50 and 16.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11.50 : 16.88 = 16.88 : x
2. Step 2: Convert to fraction form
   11.50/16.88 = 16.88/x
3. Step 3: Cross multiply
   11.50x = 16.88 × 16.88
4. Step 4: Simplify right side
   11.50x = 284.77
5. Step 5: Solve for x
   x = 284.77/11.50
6. Step 6: Final answer
   x = 24.76