Finding the Third Proportional to 449,649 and 978,596

Step by Step Solution

1. Step 1: Write the proportion equation
   449,649 : 978,596 = 978,596 : x
2. Step 2: Convert to fraction form
   449,649/978,596 = 978,596/x
3. Step 3: Cross multiply
   449,649x = 978,596 × 978,596
4. Step 4: Simplify right side
   449,649x = 957,650,131,216
5. Step 5: Solve for x
   x = 957,650,131,216/449,649
6. Step 6: Final answer
   x = 2,129,772.63