Finding the Third Proportional to 42.75 and 61.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42.75 : 61.52 = 61.52 : x
2. Step 2: Convert to fraction form
   42.75/61.52 = 61.52/x
3. Step 3: Cross multiply
   42.75x = 61.52 × 61.52
4. Step 4: Simplify right side
   42.75x = 3,785.13
5. Step 5: Solve for x
   x = 3,785.13/42.75
6. Step 6: Final answer
   x = 88.54