Finding the Third Proportional to 8,760 and 13,602

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760 : 13,602 = 13,602 : x
2. Step 2: Convert to fraction form
   8,760/13,602 = 13,602/x
3. Step 3: Cross multiply
   8,760x = 13,602 × 13,602
4. Step 4: Simplify right side
   8,760x = 185,014,404
5. Step 5: Solve for x
   x = 185,014,404/8,760
6. Step 6: Final answer
   x = 21,120.37