Finding the Third Proportional to 16,584.75 and 21,285.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,584.75 : 21,285.28 = 21,285.28 : x
2. Step 2: Convert to fraction form
   16,584.75/21,285.28 = 21,285.28/x
3. Step 3: Cross multiply
   16,584.75x = 21,285.28 × 21,285.28
4. Step 4: Simplify right side
   16,584.75x = 453,063,197.89
5. Step 5: Solve for x
   x = 453,063,197.89/16,584.75
6. Step 6: Final answer
   x = 27,318.06