Finding the Third Proportional to 450,671 and 978,372

Step by Step Solution

1. Step 1: Write the proportion equation
   450,671 : 978,372 = 978,372 : x
2. Step 2: Convert to fraction form
   450,671/978,372 = 978,372/x
3. Step 3: Cross multiply
   450,671x = 978,372 × 978,372
4. Step 4: Simplify right side
   450,671x = 957,211,770,384
5. Step 5: Solve for x
   x = 957,211,770,384/450,671
6. Step 6: Final answer
   x = 2,123,970.19