Finding the Third Proportional to 124,404 and 268,456

Step by Step Solution

1. Step 1: Write the proportion equation
   124,404 : 268,456 = 268,456 : x
2. Step 2: Convert to fraction form
   124,404/268,456 = 268,456/x
3. Step 3: Cross multiply
   124,404x = 268,456 × 268,456
4. Step 4: Simplify right side
   124,404x = 72,068,623,936
5. Step 5: Solve for x
   x = 72,068,623,936/124,404
6. Step 6: Final answer
   x = 579,311.15