Finding the Third Proportional to 123,957 and 268,521

Step by Step Solution

1. Step 1: Write the proportion equation
   123,957 : 268,521 = 268,521 : x
2. Step 2: Convert to fraction form
   123,957/268,521 = 268,521/x
3. Step 3: Cross multiply
   123,957x = 268,521 × 268,521
4. Step 4: Simplify right side
   123,957x = 72,103,527,441
5. Step 5: Solve for x
   x = 72,103,527,441/123,957
6. Step 6: Final answer
   x = 581,681.77