Finding the Third Proportional to 124,813.50 and 269,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,813.50 : 269,308.50 = 269,308.50 : x
2. Step 2: Convert to fraction form
   124,813.50/269,308.50 = 269,308.50/x
3. Step 3: Cross multiply
   124,813.50x = 269,308.50 × 269,308.50
4. Step 4: Simplify right side
   124,813.50x = 72,527,068,172.25
5. Step 5: Solve for x
   x = 72,527,068,172.25/124,813.50
6. Step 6: Final answer
   x = 581,083.52