Finding the Third Proportional to 2,188,168.50 and 3,515,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,168.50 : 3,515,800.50 = 3,515,800.50 : x
2. Step 2: Convert to fraction form
   2,188,168.50/3,515,800.50 = 3,515,800.50/x
3. Step 3: Cross multiply
   2,188,168.50x = 3,515,800.50 × 3,515,800.50
4. Step 4: Simplify right side
   2,188,168.50x = 12,360,853,155,800.25
5. Step 5: Solve for x
   x = 12,360,853,155,800.25/2,188,168.50
6. Step 6: Final answer
   x = 5,648,949.41