Finding the Third Proportional to 444,879 and 978,317

Step by Step Solution

1. Step 1: Write the proportion equation
   444,879 : 978,317 = 978,317 : x
2. Step 2: Convert to fraction form
   444,879/978,317 = 978,317/x
3. Step 3: Cross multiply
   444,879x = 978,317 × 978,317
4. Step 4: Simplify right side
   444,879x = 957,104,152,489
5. Step 5: Solve for x
   x = 957,104,152,489/444,879
6. Step 6: Final answer
   x = 2,151,380.83