Finding the Third Proportional to 12,186.56 and 17,818.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,186.56 : 17,818.31 = 17,818.31 : x
2. Step 2: Convert to fraction form
   12,186.56/17,818.31 = 17,818.31/x
3. Step 3: Cross multiply
   12,186.56x = 17,818.31 × 17,818.31
4. Step 4: Simplify right side
   12,186.56x = 317,492,260.35
5. Step 5: Solve for x
   x = 317,492,260.35/12,186.56
6. Step 6: Final answer
   x = 26,052.65