Finding the Third Proportional to 123,951.50 and 268,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,951.50 : 268,510.50 = 268,510.50 : x
2. Step 2: Convert to fraction form
   123,951.50/268,510.50 = 268,510.50/x
3. Step 3: Cross multiply
   123,951.50x = 268,510.50 × 268,510.50
4. Step 4: Simplify right side
   123,951.50x = 72,097,888,610.25
5. Step 5: Solve for x
   x = 72,097,888,610.25/123,951.50
6. Step 6: Final answer
   x = 581,662.09