Finding the Third Proportional to 449,917 and 978,566

Step by Step Solution

1. Step 1: Write the proportion equation
   449,917 : 978,566 = 978,566 : x
2. Step 2: Convert to fraction form
   449,917/978,566 = 978,566/x
3. Step 3: Cross multiply
   449,917x = 978,566 × 978,566
4. Step 4: Simplify right side
   449,917x = 957,591,416,356
5. Step 5: Solve for x
   x = 957,591,416,356/449,917
6. Step 6: Final answer
   x = 2,128,373.49