Finding the Third Proportional to 444,858 and 978,260

Step by Step Solution

1. Step 1: Write the proportion equation
   444,858 : 978,260 = 978,260 : x
2. Step 2: Convert to fraction form
   444,858/978,260 = 978,260/x
3. Step 3: Cross multiply
   444,858x = 978,260 × 978,260
4. Step 4: Simplify right side
   444,858x = 956,992,627,600
5. Step 5: Solve for x
   x = 956,992,627,600/444,858
6. Step 6: Final answer
   x = 2,151,231.69