Finding the Third Proportional to 16,899.75 and 39,163.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,899.75 : 39,163.50 = 39,163.50 : x
2. Step 2: Convert to fraction form
   16,899.75/39,163.50 = 39,163.50/x
3. Step 3: Cross multiply
   16,899.75x = 39,163.50 × 39,163.50
4. Step 4: Simplify right side
   16,899.75x = 1,533,779,732.25
5. Step 5: Solve for x
   x = 1,533,779,732.25/16,899.75
6. Step 6: Final answer
   x = 90,757.54