Finding the Third Proportional to 338,901.75 and 722,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,901.75 : 722,839.50 = 722,839.50 : x
2. Step 2: Convert to fraction form
   338,901.75/722,839.50 = 722,839.50/x
3. Step 3: Cross multiply
   338,901.75x = 722,839.50 × 722,839.50
4. Step 4: Simplify right side
   338,901.75x = 522,496,942,760.25
5. Step 5: Solve for x
   x = 522,496,942,760.25/338,901.75
6. Step 6: Final answer
   x = 1,541,735.75