Finding the Third Proportional to 296,449.50 and 699,558

Step by Step Solution

1. Step 1: Write the proportion equation
   296,449.50 : 699,558 = 699,558 : x
2. Step 2: Convert to fraction form
   296,449.50/699,558 = 699,558/x
3. Step 3: Cross multiply
   296,449.50x = 699,558 × 699,558
4. Step 4: Simplify right side
   296,449.50x = 489,381,395,364
5. Step 5: Solve for x
   x = 489,381,395,364/296,449.50
6. Step 6: Final answer
   x = 1,650,808.64