Finding the Third Proportional to 449,947 and 978,626

Step by Step Solution

1. Step 1: Write the proportion equation
   449,947 : 978,626 = 978,626 : x
2. Step 2: Convert to fraction form
   449,947/978,626 = 978,626/x
3. Step 3: Cross multiply
   449,947x = 978,626 × 978,626
4. Step 4: Simplify right side
   449,947x = 957,708,847,876
5. Step 5: Solve for x
   x = 957,708,847,876/449,947
6. Step 6: Final answer
   x = 2,128,492.57