Finding the Third Proportional to 123,508.50 and 251,382

Step by Step Solution

1. Step 1: Write the proportion equation
   123,508.50 : 251,382 = 251,382 : x
2. Step 2: Convert to fraction form
   123,508.50/251,382 = 251,382/x
3. Step 3: Cross multiply
   123,508.50x = 251,382 × 251,382
4. Step 4: Simplify right side
   123,508.50x = 63,192,909,924
5. Step 5: Solve for x
   x = 63,192,909,924/123,508.50
6. Step 6: Final answer
   x = 511,648.27