Finding the Third Proportional to 685,003.50 and 1,479,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   685,003.50 : 1,479,766.50 = 1,479,766.50 : x
2. Step 2: Convert to fraction form
   685,003.50/1,479,766.50 = 1,479,766.50/x
3. Step 3: Cross multiply
   685,003.50x = 1,479,766.50 × 1,479,766.50
4. Step 4: Simplify right side
   685,003.50x = 2,189,708,894,522.25
5. Step 5: Solve for x
   x = 2,189,708,894,522.25/685,003.50
6. Step 6: Final answer
   x = 3,196,638.99