Finding the Third Proportional to 11,299.50 and 18,011.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,299.50 : 18,011.25 = 18,011.25 : x
2. Step 2: Convert to fraction form
   11,299.50/18,011.25 = 18,011.25/x
3. Step 3: Cross multiply
   11,299.50x = 18,011.25 × 18,011.25
4. Step 4: Simplify right side
   11,299.50x = 324,405,126.56
5. Step 5: Solve for x
   x = 324,405,126.56/11,299.50
6. Step 6: Final answer
   x = 28,709.69