Finding the Third Proportional to 450,802 and 697,665

Step by Step Solution

1. Step 1: Write the proportion equation
   450,802 : 697,665 = 697,665 : x
2. Step 2: Convert to fraction form
   450,802/697,665 = 697,665/x
3. Step 3: Cross multiply
   450,802x = 697,665 × 697,665
4. Step 4: Simplify right side
   450,802x = 486,736,452,225
5. Step 5: Solve for x
   x = 486,736,452,225/450,802
6. Step 6: Final answer
   x = 1,079,712.27