Finding the Third Proportional to 57.25 and 123.81

Step by Step Solution

1. Step 1: Write the proportion equation
   57.25 : 123.81 = 123.81 : x
2. Step 2: Convert to fraction form
   57.25/123.81 = 123.81/x
3. Step 3: Cross multiply
   57.25x = 123.81 × 123.81
4. Step 4: Simplify right side
   57.25x = 15,329.54
5. Step 5: Solve for x
   x = 15,329.54/57.25
6. Step 6: Final answer
   x = 267.76