Finding the Third Proportional to 449,668 and 978,632

Step by Step Solution

1. Step 1: Write the proportion equation
   449,668 : 978,632 = 978,632 : x
2. Step 2: Convert to fraction form
   449,668/978,632 = 978,632/x
3. Step 3: Cross multiply
   449,668x = 978,632 × 978,632
4. Step 4: Simplify right side
   449,668x = 957,720,591,424
5. Step 5: Solve for x
   x = 957,720,591,424/449,668
6. Step 6: Final answer
   x = 2,129,839.33