Finding the Third Proportional to 11,399 and 18,034.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,399 : 18,034.50 = 18,034.50 : x
2. Step 2: Convert to fraction form
   11,399/18,034.50 = 18,034.50/x
3. Step 3: Cross multiply
   11,399x = 18,034.50 × 18,034.50
4. Step 4: Simplify right side
   11,399x = 325,243,190.25
5. Step 5: Solve for x
   x = 325,243,190.25/11,399
6. Step 6: Final answer
   x = 28,532.61