Finding the Third Proportional to 13,187.81 and 17,898.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,187.81 : 17,898.47 = 17,898.47 : x
2. Step 2: Convert to fraction form
   13,187.81/17,898.47 = 17,898.47/x
3. Step 3: Cross multiply
   13,187.81x = 17,898.47 × 17,898.47
4. Step 4: Simplify right side
   13,187.81x = 320,355,183.59
5. Step 5: Solve for x
   x = 320,355,183.59/13,187.81
6. Step 6: Final answer
   x = 24,291.76