Finding the Third Proportional to 16,179.75 and 21,591.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,179.75 : 21,591.56 = 21,591.56 : x
2. Step 2: Convert to fraction form
   16,179.75/21,591.56 = 21,591.56/x
3. Step 3: Cross multiply
   16,179.75x = 21,591.56 × 21,591.56
4. Step 4: Simplify right side
   16,179.75x = 466,195,571.19
5. Step 5: Solve for x
   x = 466,195,571.19/16,179.75
6. Step 6: Final answer
   x = 28,813.52