Finding the Third Proportional to 449,641 and 978,599

Step by Step Solution

1. Step 1: Write the proportion equation
   449,641 : 978,599 = 978,599 : x
2. Step 2: Convert to fraction form
   449,641/978,599 = 978,599/x
3. Step 3: Cross multiply
   449,641x = 978,599 × 978,599
4. Step 4: Simplify right side
   449,641x = 957,656,002,801
5. Step 5: Solve for x
   x = 957,656,002,801/449,641
6. Step 6: Final answer
   x = 2,129,823.58