Finding the Third Proportional to 8,667 and 13,636.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,667 : 13,636.50 = 13,636.50 : x
2. Step 2: Convert to fraction form
   8,667/13,636.50 = 13,636.50/x
3. Step 3: Cross multiply
   8,667x = 13,636.50 × 13,636.50
4. Step 4: Simplify right side
   8,667x = 185,954,132.25
5. Step 5: Solve for x
   x = 185,954,132.25/8,667
6. Step 6: Final answer
   x = 21,455.42