Finding the Third Proportional to 450,670 and 978,370

Step by Step Solution

1. Step 1: Write the proportion equation
   450,670 : 978,370 = 978,370 : x
2. Step 2: Convert to fraction form
   450,670/978,370 = 978,370/x
3. Step 3: Cross multiply
   450,670x = 978,370 × 978,370
4. Step 4: Simplify right side
   450,670x = 957,207,856,900
5. Step 5: Solve for x
   x = 957,207,856,900/450,670
6. Step 6: Final answer
   x = 2,123,966.22