Finding the Third Proportional to 16,243.03 and 18,532.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,243.03 : 18,532.55 = 18,532.55 : x
2. Step 2: Convert to fraction form
   16,243.03/18,532.55 = 18,532.55/x
3. Step 3: Cross multiply
   16,243.03x = 18,532.55 × 18,532.55
4. Step 4: Simplify right side
   16,243.03x = 343,455,293.67
5. Step 5: Solve for x
   x = 343,455,293.67/16,243.03
6. Step 6: Final answer
   x = 21,144.78