Finding the Third Proportional to 444,860 and 978,279

Step by Step Solution

1. Step 1: Write the proportion equation
   444,860 : 978,279 = 978,279 : x
2. Step 2: Convert to fraction form
   444,860/978,279 = 978,279/x
3. Step 3: Cross multiply
   444,860x = 978,279 × 978,279
4. Step 4: Simplify right side
   444,860x = 957,029,801,841
5. Step 5: Solve for x
   x = 957,029,801,841/444,860
6. Step 6: Final answer
   x = 2,151,305.58