Finding the Third Proportional to 16,189.88 and 21,687.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,189.88 : 21,687.75 = 21,687.75 : x
2. Step 2: Convert to fraction form
   16,189.88/21,687.75 = 21,687.75/x
3. Step 3: Cross multiply
   16,189.88x = 21,687.75 × 21,687.75
4. Step 4: Simplify right side
   16,189.88x = 470,358,500.06
5. Step 5: Solve for x
   x = 470,358,500.06/16,189.88
6. Step 6: Final answer
   x = 29,052.63