Finding the Third Proportional to 868,644 and 1,328,799

Step by Step Solution

1. Step 1: Write the proportion equation
   868,644 : 1,328,799 = 1,328,799 : x
2. Step 2: Convert to fraction form
   868,644/1,328,799 = 1,328,799/x
3. Step 3: Cross multiply
   868,644x = 1,328,799 × 1,328,799
4. Step 4: Simplify right side
   868,644x = 1,765,706,782,401
5. Step 5: Solve for x
   x = 1,765,706,782,401/868,644
6. Step 6: Final answer
   x = 2,032,716.26