Finding the Third Proportional to 498,270 and 773,656

Step by Step Solution

1. Step 1: Write the proportion equation
   498,270 : 773,656 = 773,656 : x
2. Step 2: Convert to fraction form
   498,270/773,656 = 773,656/x
3. Step 3: Cross multiply
   498,270x = 773,656 × 773,656
4. Step 4: Simplify right side
   498,270x = 598,543,606,336
5. Step 5: Solve for x
   x = 598,543,606,336/498,270
6. Step 6: Final answer
   x = 1,201,243.52