Finding the Third Proportional to 16,284.75 and 21,510.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,284.75 : 21,510.75 = 21,510.75 : x
2. Step 2: Convert to fraction form
   16,284.75/21,510.75 = 21,510.75/x
3. Step 3: Cross multiply
   16,284.75x = 21,510.75 × 21,510.75
4. Step 4: Simplify right side
   16,284.75x = 462,712,365.56
5. Step 5: Solve for x
   x = 462,712,365.56/16,284.75
6. Step 6: Final answer
   x = 28,413.85