Finding the Third Proportional to 442,719 and 978,467

Step by Step Solution

1. Step 1: Write the proportion equation
   442,719 : 978,467 = 978,467 : x
2. Step 2: Convert to fraction form
   442,719/978,467 = 978,467/x
3. Step 3: Cross multiply
   442,719x = 978,467 × 978,467
4. Step 4: Simplify right side
   442,719x = 957,397,670,089
5. Step 5: Solve for x
   x = 957,397,670,089/442,719
6. Step 6: Final answer
   x = 2,162,540.28