Finding the Third Proportional to 124.45 and 255.87

Step by Step Solution

1. Step 1: Write the proportion equation
   124.45 : 255.87 = 255.87 : x
2. Step 2: Convert to fraction form
   124.45/255.87 = 255.87/x
3. Step 3: Cross multiply
   124.45x = 255.87 × 255.87
4. Step 4: Simplify right side
   124.45x = 65,468.02
5. Step 5: Solve for x
   x = 65,468.02/124.45
6. Step 6: Final answer
   x = 526.05