Finding the Third Proportional to 449,945 and 978,622

Step by Step Solution

1. Step 1: Write the proportion equation
   449,945 : 978,622 = 978,622 : x
2. Step 2: Convert to fraction form
   449,945/978,622 = 978,622/x
3. Step 3: Cross multiply
   449,945x = 978,622 × 978,622
4. Step 4: Simplify right side
   449,945x = 957,701,018,884
5. Step 5: Solve for x
   x = 957,701,018,884/449,945
6. Step 6: Final answer
   x = 2,128,484.63