Finding the Third Proportional to 498,416 and 773,040

Step by Step Solution

1. Step 1: Write the proportion equation
   498,416 : 773,040 = 773,040 : x
2. Step 2: Convert to fraction form
   498,416/773,040 = 773,040/x
3. Step 3: Cross multiply
   498,416x = 773,040 × 773,040
4. Step 4: Simplify right side
   498,416x = 597,590,841,600
5. Step 5: Solve for x
   x = 597,590,841,600/498,416
6. Step 6: Final answer
   x = 1,198,980.05