Finding the Third Proportional to 12.50 and 13.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12.50 : 13.38 = 13.38 : x
2. Step 2: Convert to fraction form
   12.50/13.38 = 13.38/x
3. Step 3: Cross multiply
   12.50x = 13.38 × 13.38
4. Step 4: Simplify right side
   12.50x = 178.89
5. Step 5: Solve for x
   x = 178.89/12.50
6. Step 6: Final answer
   x = 14.31