Finding the Third Proportional to 442,717 and 978,463

Step by Step Solution

1. Step 1: Write the proportion equation
   442,717 : 978,463 = 978,463 : x
2. Step 2: Convert to fraction form
   442,717/978,463 = 978,463/x
3. Step 3: Cross multiply
   442,717x = 978,463 × 978,463
4. Step 4: Simplify right side
   442,717x = 957,389,842,369
5. Step 5: Solve for x
   x = 957,389,842,369/442,717
6. Step 6: Final answer
   x = 2,162,532.37