Finding the Third Proportional to 13,269.50 and 18,861.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,269.50 : 18,861.75 = 18,861.75 : x
2. Step 2: Convert to fraction form
   13,269.50/18,861.75 = 18,861.75/x
3. Step 3: Cross multiply
   13,269.50x = 18,861.75 × 18,861.75
4. Step 4: Simplify right side
   13,269.50x = 355,765,613.06
5. Step 5: Solve for x
   x = 355,765,613.06/13,269.50
6. Step 6: Final answer
   x = 26,810.78