Finding the Third Proportional to 605,404.13 and 822,555

Step by Step Solution

1. Step 1: Write the proportion equation
   605,404.13 : 822,555 = 822,555 : x
2. Step 2: Convert to fraction form
   605,404.13/822,555 = 822,555/x
3. Step 3: Cross multiply
   605,404.13x = 822,555 × 822,555
4. Step 4: Simplify right side
   605,404.13x = 676,596,728,025
5. Step 5: Solve for x
   x = 676,596,728,025/605,404.13
6. Step 6: Final answer
   x = 1,117,595.17