Finding the Third Proportional to 449,577 and 978,479

Step by Step Solution

1. Step 1: Write the proportion equation
   449,577 : 978,479 = 978,479 : x
2. Step 2: Convert to fraction form
   449,577/978,479 = 978,479/x
3. Step 3: Cross multiply
   449,577x = 978,479 × 978,479
4. Step 4: Simplify right side
   449,577x = 957,421,153,441
5. Step 5: Solve for x
   x = 957,421,153,441/449,577
6. Step 6: Final answer
   x = 2,129,604.39