Finding the Third Proportional to 12,901.78 and 18,190.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.78 : 18,190.83 = 18,190.83 : x
2. Step 2: Convert to fraction form
   12,901.78/18,190.83 = 18,190.83/x
3. Step 3: Cross multiply
   12,901.78x = 18,190.83 × 18,190.83
4. Step 4: Simplify right side
   12,901.78x = 330,906,227.87
5. Step 5: Solve for x
   x = 330,906,227.87/12,901.78
6. Step 6: Final answer
   x = 25,648.10