Finding the Third Proportional to 449,659 and 978,635

Step by Step Solution

1. Step 1: Write the proportion equation
   449,659 : 978,635 = 978,635 : x
2. Step 2: Convert to fraction form
   449,659/978,635 = 978,635/x
3. Step 3: Cross multiply
   449,659x = 978,635 × 978,635
4. Step 4: Simplify right side
   449,659x = 957,726,463,225
5. Step 5: Solve for x
   x = 957,726,463,225/449,659
6. Step 6: Final answer
   x = 2,129,895.02