Finding the Third Proportional to 442,712 and 978,452

Step by Step Solution

1. Step 1: Write the proportion equation
   442,712 : 978,452 = 978,452 : x
2. Step 2: Convert to fraction form
   442,712/978,452 = 978,452/x
3. Step 3: Cross multiply
   442,712x = 978,452 × 978,452
4. Step 4: Simplify right side
   442,712x = 957,368,316,304
5. Step 5: Solve for x
   x = 957,368,316,304/442,712
6. Step 6: Final answer
   x = 2,162,508.17