Finding the Third Proportional to 450,440 and 978,758

Step by Step Solution

1. Step 1: Write the proportion equation
   450,440 : 978,758 = 978,758 : x
2. Step 2: Convert to fraction form
   450,440/978,758 = 978,758/x
3. Step 3: Cross multiply
   450,440x = 978,758 × 978,758
4. Step 4: Simplify right side
   450,440x = 957,967,222,564
5. Step 5: Solve for x
   x = 957,967,222,564/450,440
6. Step 6: Final answer
   x = 2,126,736.57