Finding the Third Proportional to 13,072.50 and 18,510.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,072.50 : 18,510.75 = 18,510.75 : x
2. Step 2: Convert to fraction form
   13,072.50/18,510.75 = 18,510.75/x
3. Step 3: Cross multiply
   13,072.50x = 18,510.75 × 18,510.75
4. Step 4: Simplify right side
   13,072.50x = 342,647,865.56
5. Step 5: Solve for x
   x = 342,647,865.56/13,072.50
6. Step 6: Final answer
   x = 26,211.35