Finding the Third Proportional to 451,573.50 and 699,597

Step by Step Solution

1. Step 1: Write the proportion equation
   451,573.50 : 699,597 = 699,597 : x
2. Step 2: Convert to fraction form
   451,573.50/699,597 = 699,597/x
3. Step 3: Cross multiply
   451,573.50x = 699,597 × 699,597
4. Step 4: Simplify right side
   451,573.50x = 489,435,962,409
5. Step 5: Solve for x
   x = 489,435,962,409/451,573.50
6. Step 6: Final answer
   x = 1,083,845.63