Finding the Third Proportional to 444,728 and 978,021

Step by Step Solution

1. Step 1: Write the proportion equation
   444,728 : 978,021 = 978,021 : x
2. Step 2: Convert to fraction form
   444,728/978,021 = 978,021/x
3. Step 3: Cross multiply
   444,728x = 978,021 × 978,021
4. Step 4: Simplify right side
   444,728x = 956,525,076,441
5. Step 5: Solve for x
   x = 956,525,076,441/444,728
6. Step 6: Final answer
   x = 2,150,809.21