Finding the Third Proportional to 124,240 and 268,150

Step by Step Solution

1. Step 1: Write the proportion equation
   124,240 : 268,150 = 268,150 : x
2. Step 2: Convert to fraction form
   124,240/268,150 = 268,150/x
3. Step 3: Cross multiply
   124,240x = 268,150 × 268,150
4. Step 4: Simplify right side
   124,240x = 71,904,422,500
5. Step 5: Solve for x
   x = 71,904,422,500/124,240
6. Step 6: Final answer
   x = 578,754.21