Finding the Third Proportional to 442,718 and 978,464

Step by Step Solution

1. Step 1: Write the proportion equation
   442,718 : 978,464 = 978,464 : x
2. Step 2: Convert to fraction form
   442,718/978,464 = 978,464/x
3. Step 3: Cross multiply
   442,718x = 978,464 × 978,464
4. Step 4: Simplify right side
   442,718x = 957,391,799,296
5. Step 5: Solve for x
   x = 957,391,799,296/442,718
6. Step 6: Final answer
   x = 2,162,531.90