Finding the Third Proportional to 498,435.50 and 773,228.50

Step by Step Solution

1. Step 1: Write the proportion equation
   498,435.50 : 773,228.50 = 773,228.50 : x
2. Step 2: Convert to fraction form
   498,435.50/773,228.50 = 773,228.50/x
3. Step 3: Cross multiply
   498,435.50x = 773,228.50 × 773,228.50
4. Step 4: Simplify right side
   498,435.50x = 597,882,313,212.25
5. Step 5: Solve for x
   x = 597,882,313,212.25/498,435.50
6. Step 6: Final answer
   x = 1,199,517.92