Finding the Third Proportional to 12,708 and 18,569.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708 : 18,569.25 = 18,569.25 : x
2. Step 2: Convert to fraction form
   12,708/18,569.25 = 18,569.25/x
3. Step 3: Cross multiply
   12,708x = 18,569.25 × 18,569.25
4. Step 4: Simplify right side
   12,708x = 344,817,045.56
5. Step 5: Solve for x
   x = 344,817,045.56/12,708
6. Step 6: Final answer
   x = 27,133.86