Finding the Third Proportional to 449,654 and 978,604

Step by Step Solution

1. Step 1: Write the proportion equation
   449,654 : 978,604 = 978,604 : x
2. Step 2: Convert to fraction form
   449,654/978,604 = 978,604/x
3. Step 3: Cross multiply
   449,654x = 978,604 × 978,604
4. Step 4: Simplify right side
   449,654x = 957,665,788,816
5. Step 5: Solve for x
   x = 957,665,788,816/449,654
6. Step 6: Final answer
   x = 2,129,783.76