Finding the Third Proportional to 443,904 and 978,291

Step by Step Solution

1. Step 1: Write the proportion equation
   443,904 : 978,291 = 978,291 : x
2. Step 2: Convert to fraction form
   443,904/978,291 = 978,291/x
3. Step 3: Cross multiply
   443,904x = 978,291 × 978,291
4. Step 4: Simplify right side
   443,904x = 957,053,280,681
5. Step 5: Solve for x
   x = 957,053,280,681/443,904
6. Step 6: Final answer
   x = 2,155,991.57