Finding the Third Proportional to 12,086.72 and 18,676.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.72 : 18,676.83 = 18,676.83 : x
2. Step 2: Convert to fraction form
   12,086.72/18,676.83 = 18,676.83/x
3. Step 3: Cross multiply
   12,086.72x = 18,676.83 × 18,676.83
4. Step 4: Simplify right side
   12,086.72x = 348,823,908.81
5. Step 5: Solve for x
   x = 348,823,908.81/12,086.72
6. Step 6: Final answer
   x = 28,860.10