Finding the Third Proportional to 16,366.50 and 18,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,366.50 : 18,148.50 = 18,148.50 : x
2. Step 2: Convert to fraction form
   16,366.50/18,148.50 = 18,148.50/x
3. Step 3: Cross multiply
   16,366.50x = 18,148.50 × 18,148.50
4. Step 4: Simplify right side
   16,366.50x = 329,368,052.25
5. Step 5: Solve for x
   x = 329,368,052.25/16,366.50
6. Step 6: Final answer
   x = 20,124.53