Finding the Third Proportional to 450,780 and 697,632

Step by Step Solution

1. Step 1: Write the proportion equation
   450,780 : 697,632 = 697,632 : x
2. Step 2: Convert to fraction form
   450,780/697,632 = 697,632/x
3. Step 3: Cross multiply
   450,780x = 697,632 × 697,632
4. Step 4: Simplify right side
   450,780x = 486,690,407,424
5. Step 5: Solve for x
   x = 486,690,407,424/450,780
6. Step 6: Final answer
   x = 1,079,662.82