Finding the Third Proportional to 442,728 and 978,484

Step by Step Solution

1. Step 1: Write the proportion equation
   442,728 : 978,484 = 978,484 : x
2. Step 2: Convert to fraction form
   442,728/978,484 = 978,484/x
3. Step 3: Cross multiply
   442,728x = 978,484 × 978,484
4. Step 4: Simplify right side
   442,728x = 957,430,938,256
5. Step 5: Solve for x
   x = 957,430,938,256/442,728
6. Step 6: Final answer
   x = 2,162,571.46