Finding the Third Proportional to 450,456 and 978,792

Step by Step Solution

1. Step 1: Write the proportion equation
   450,456 : 978,792 = 978,792 : x
2. Step 2: Convert to fraction form
   450,456/978,792 = 978,792/x
3. Step 3: Cross multiply
   450,456x = 978,792 × 978,792
4. Step 4: Simplify right side
   450,456x = 958,033,779,264
5. Step 5: Solve for x
   x = 958,033,779,264/450,456
6. Step 6: Final answer
   x = 2,126,808.79