Finding the Third Proportional to 127.50 and 133.13

Step by Step Solution

1. Step 1: Write the proportion equation
   127.50 : 133.13 = 133.13 : x
2. Step 2: Convert to fraction form
   127.50/133.13 = 133.13/x
3. Step 3: Cross multiply
   127.50x = 133.13 × 133.13
4. Step 4: Simplify right side
   127.50x = 17,722.27
5. Step 5: Solve for x
   x = 17,722.27/127.50
6. Step 6: Final answer
   x = 139.00