Finding the Third Proportional to 449,957 and 978,646

Step by Step Solution

1. Step 1: Write the proportion equation
   449,957 : 978,646 = 978,646 : x
2. Step 2: Convert to fraction form
   449,957/978,646 = 978,646/x
3. Step 3: Cross multiply
   449,957x = 978,646 × 978,646
4. Step 4: Simplify right side
   449,957x = 957,747,993,316
5. Step 5: Solve for x
   x = 957,747,993,316/449,957
6. Step 6: Final answer
   x = 2,128,532.27