Finding the Third Proportional to 16,609.50 and 36,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,609.50 : 36,128.25 = 36,128.25 : x
2. Step 2: Convert to fraction form
   16,609.50/36,128.25 = 36,128.25/x
3. Step 3: Cross multiply
   16,609.50x = 36,128.25 × 36,128.25
4. Step 4: Simplify right side
   16,609.50x = 1,305,250,448.06
5. Step 5: Solve for x
   x = 1,305,250,448.06/16,609.50
6. Step 6: Final answer
   x = 78,584.57