Finding the Third Proportional to 498,768 and 773,881.50

Step by Step Solution

1. Step 1: Write the proportion equation
   498,768 : 773,881.50 = 773,881.50 : x
2. Step 2: Convert to fraction form
   498,768/773,881.50 = 773,881.50/x
3. Step 3: Cross multiply
   498,768x = 773,881.50 × 773,881.50
4. Step 4: Simplify right side
   498,768x = 598,892,576,042.25
5. Step 5: Solve for x
   x = 598,892,576,042.25/498,768
6. Step 6: Final answer
   x = 1,200,743.78