Finding the Third Proportional to 498,245 and 773,617

Step by Step Solution

1. Step 1: Write the proportion equation
   498,245 : 773,617 = 773,617 : x
2. Step 2: Convert to fraction form
   498,245/773,617 = 773,617/x
3. Step 3: Cross multiply
   498,245x = 773,617 × 773,617
4. Step 4: Simplify right side
   498,245x = 598,483,262,689
5. Step 5: Solve for x
   x = 598,483,262,689/498,245
6. Step 6: Final answer
   x = 1,201,182.68