Finding the Third Proportional to 123,426 and 268,452

Step by Step Solution

1. Step 1: Write the proportion equation
   123,426 : 268,452 = 268,452 : x
2. Step 2: Convert to fraction form
   123,426/268,452 = 268,452/x
3. Step 3: Cross multiply
   123,426x = 268,452 × 268,452
4. Step 4: Simplify right side
   123,426x = 72,066,476,304
5. Step 5: Solve for x
   x = 72,066,476,304/123,426
6. Step 6: Final answer
   x = 583,884.08