Finding the Third Proportional to 450,434 and 978,748

Step by Step Solution

1. Step 1: Write the proportion equation
   450,434 : 978,748 = 978,748 : x
2. Step 2: Convert to fraction form
   450,434/978,748 = 978,748/x
3. Step 3: Cross multiply
   450,434x = 978,748 × 978,748
4. Step 4: Simplify right side
   450,434x = 957,947,647,504
5. Step 5: Solve for x
   x = 957,947,647,504/450,434
6. Step 6: Final answer
   x = 2,126,721.45