Finding the Third Proportional to 123,037.50 and 268,311

Step by Step Solution

1. Step 1: Write the proportion equation
   123,037.50 : 268,311 = 268,311 : x
2. Step 2: Convert to fraction form
   123,037.50/268,311 = 268,311/x
3. Step 3: Cross multiply
   123,037.50x = 268,311 × 268,311
4. Step 4: Simplify right side
   123,037.50x = 71,990,792,721
5. Step 5: Solve for x
   x = 71,990,792,721/123,037.50
6. Step 6: Final answer
   x = 585,112.61