Finding the Third Proportional to 124.31 and 246.94

Step by Step Solution

1. Step 1: Write the proportion equation
   124.31 : 246.94 = 246.94 : x
2. Step 2: Convert to fraction form
   124.31/246.94 = 246.94/x
3. Step 3: Cross multiply
   124.31x = 246.94 × 246.94
4. Step 4: Simplify right side
   124.31x = 60,978.13
5. Step 5: Solve for x
   x = 60,978.13/124.31
6. Step 6: Final answer
   x = 490.52