Finding the Third Proportional to 498,772.69 and 773,890.45

Step by Step Solution

1. Step 1: Write the proportion equation
   498,772.69 : 773,890.45 = 773,890.45 : x
2. Step 2: Convert to fraction form
   498,772.69/773,890.45 = 773,890.45/x
3. Step 3: Cross multiply
   498,772.69x = 773,890.45 × 773,890.45
4. Step 4: Simplify right side
   498,772.69x = 598,906,433,438.02
5. Step 5: Solve for x
   x = 598,906,433,438.02/498,772.69
6. Step 6: Final answer
   x = 1,200,760.28