Finding the Third Proportional to 16,213.50 and 21,633.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,213.50 : 21,633.75 = 21,633.75 : x
2. Step 2: Convert to fraction form
   16,213.50/21,633.75 = 21,633.75/x
3. Step 3: Cross multiply
   16,213.50x = 21,633.75 × 21,633.75
4. Step 4: Simplify right side
   16,213.50x = 468,019,139.06
5. Step 5: Solve for x
   x = 468,019,139.06/16,213.50
6. Step 6: Final answer
   x = 28,866.02