Finding the Third Proportional to 450,800 and 697,662

Step by Step Solution

1. Step 1: Write the proportion equation
   450,800 : 697,662 = 697,662 : x
2. Step 2: Convert to fraction form
   450,800/697,662 = 697,662/x
3. Step 3: Cross multiply
   450,800x = 697,662 × 697,662
4. Step 4: Simplify right side
   450,800x = 486,732,266,244
5. Step 5: Solve for x
   x = 486,732,266,244/450,800
6. Step 6: Final answer
   x = 1,079,707.78