Finding the Third Proportional to 16,668 and 19,116

Step by Step Solution

1. Step 1: Write the proportion equation
   16,668 : 19,116 = 19,116 : x
2. Step 2: Convert to fraction form
   16,668/19,116 = 19,116/x
3. Step 3: Cross multiply
   16,668x = 19,116 × 19,116
4. Step 4: Simplify right side
   16,668x = 365,421,456
5. Step 5: Solve for x
   x = 365,421,456/16,668
6. Step 6: Final answer
   x = 21,923.53