Finding the Third Proportional to 444,858 and 978,259

Step by Step Solution

1. Step 1: Write the proportion equation
   444,858 : 978,259 = 978,259 : x
2. Step 2: Convert to fraction form
   444,858/978,259 = 978,259/x
3. Step 3: Cross multiply
   444,858x = 978,259 × 978,259
4. Step 4: Simplify right side
   444,858x = 956,990,671,081
5. Step 5: Solve for x
   x = 956,990,671,081/444,858
6. Step 6: Final answer
   x = 2,151,227.29