Finding the Third Proportional to 5,683.50 and 8,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,683.50 : 8,443.50 = 8,443.50 : x
2. Step 2: Convert to fraction form
   5,683.50/8,443.50 = 8,443.50/x
3. Step 3: Cross multiply
   5,683.50x = 8,443.50 × 8,443.50
4. Step 4: Simplify right side
   5,683.50x = 71,292,692.25
5. Step 5: Solve for x
   x = 71,292,692.25/5,683.50
6. Step 6: Final answer
   x = 12,543.80