Finding the Third Proportional to 57.72 and 124.16

Step by Step Solution

1. Step 1: Write the proportion equation
   57.72 : 124.16 = 124.16 : x
2. Step 2: Convert to fraction form
   57.72/124.16 = 124.16/x
3. Step 3: Cross multiply
   57.72x = 124.16 × 124.16
4. Step 4: Simplify right side
   57.72x = 15,414.77
5. Step 5: Solve for x
   x = 15,414.77/57.72
6. Step 6: Final answer
   x = 267.07