Finding the Third Proportional to 16,336.69 and 18,888.19

Step by Step Solution

1. Step 1: Write the proportion equation
   16,336.69 : 18,888.19 = 18,888.19 : x
2. Step 2: Convert to fraction form
   16,336.69/18,888.19 = 18,888.19/x
3. Step 3: Cross multiply
   16,336.69x = 18,888.19 × 18,888.19
4. Step 4: Simplify right side
   16,336.69x = 356,763,627.04
5. Step 5: Solve for x
   x = 356,763,627.04/16,336.69
6. Step 6: Final answer
   x = 21,838.19