Finding the Third Proportional to 605,677.50 and 822,918

Step by Step Solution

1. Step 1: Write the proportion equation
   605,677.50 : 822,918 = 822,918 : x
2. Step 2: Convert to fraction form
   605,677.50/822,918 = 822,918/x
3. Step 3: Cross multiply
   605,677.50x = 822,918 × 822,918
4. Step 4: Simplify right side
   605,677.50x = 677,194,034,724
5. Step 5: Solve for x
   x = 677,194,034,724/605,677.50
6. Step 6: Final answer
   x = 1,118,076.92