Finding the Third Proportional to 13,226.63 and 18,128.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,226.63 : 18,128.81 = 18,128.81 : x
2. Step 2: Convert to fraction form
   13,226.63/18,128.81 = 18,128.81/x
3. Step 3: Cross multiply
   13,226.63x = 18,128.81 × 18,128.81
4. Step 4: Simplify right side
   13,226.63x = 328,653,842.66
5. Step 5: Solve for x
   x = 328,653,842.66/13,226.63
6. Step 6: Final answer
   x = 24,847.90