Finding the Third Proportional to 12,458.81 and 18,171.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,458.81 : 18,171.84 = 18,171.84 : x
2. Step 2: Convert to fraction form
   12,458.81/18,171.84 = 18,171.84/x
3. Step 3: Cross multiply
   12,458.81x = 18,171.84 × 18,171.84
4. Step 4: Simplify right side
   12,458.81x = 330,215,905.27
5. Step 5: Solve for x
   x = 330,215,905.27/12,458.81
6. Step 6: Final answer
   x = 26,504.61