Finding the Third Proportional to 815,918 and 1,777,000

Step by Step Solution

1. Step 1: Write the proportion equation
   815,918 : 1,777,000 = 1,777,000 : x
2. Step 2: Convert to fraction form
   815,918/1,777,000 = 1,777,000/x
3. Step 3: Cross multiply
   815,918x = 1,777,000 × 1,777,000
4. Step 4: Simplify right side
   815,918x = 3,157,729,000,000
5. Step 5: Solve for x
   x = 3,157,729,000,000/815,918
6. Step 6: Final answer
   x = 3,870,154.84