Finding the Third Proportional to 8,680 and 13,254

Step by Step Solution

1. Step 1: Write the proportion equation
   8,680 : 13,254 = 13,254 : x
2. Step 2: Convert to fraction form
   8,680/13,254 = 13,254/x
3. Step 3: Cross multiply
   8,680x = 13,254 × 13,254
4. Step 4: Simplify right side
   8,680x = 175,668,516
5. Step 5: Solve for x
   x = 175,668,516/8,680
6. Step 6: Final answer
   x = 20,238.31