Finding the Third Proportional to 123,958 and 268,520

Step by Step Solution

1. Step 1: Write the proportion equation
   123,958 : 268,520 = 268,520 : x
2. Step 2: Convert to fraction form
   123,958/268,520 = 268,520/x
3. Step 3: Cross multiply
   123,958x = 268,520 × 268,520
4. Step 4: Simplify right side
   123,958x = 72,102,990,400
5. Step 5: Solve for x
   x = 72,102,990,400/123,958
6. Step 6: Final answer
   x = 581,672.75