Finding the Third Proportional to 12,865.50 and 13,884.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,865.50 : 13,884.75 = 13,884.75 : x
2. Step 2: Convert to fraction form
   12,865.50/13,884.75 = 13,884.75/x
3. Step 3: Cross multiply
   12,865.50x = 13,884.75 × 13,884.75
4. Step 4: Simplify right side
   12,865.50x = 192,786,282.56
5. Step 5: Solve for x
   x = 192,786,282.56/12,865.50
6. Step 6: Final answer
   x = 14,984.75