Finding the Third Proportional to 444,838 and 978,216

Step by Step Solution

1. Step 1: Write the proportion equation
   444,838 : 978,216 = 978,216 : x
2. Step 2: Convert to fraction form
   444,838/978,216 = 978,216/x
3. Step 3: Cross multiply
   444,838x = 978,216 × 978,216
4. Step 4: Simplify right side
   444,838x = 956,906,542,656
5. Step 5: Solve for x
   x = 956,906,542,656/444,838
6. Step 6: Final answer
   x = 2,151,134.89