Finding the Third Proportional to 20,608.50 and 39,575.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,608.50 : 39,575.25 = 39,575.25 : x
2. Step 2: Convert to fraction form
   20,608.50/39,575.25 = 39,575.25/x
3. Step 3: Cross multiply
   20,608.50x = 39,575.25 × 39,575.25
4. Step 4: Simplify right side
   20,608.50x = 1,566,200,412.56
5. Step 5: Solve for x
   x = 1,566,200,412.56/20,608.50
6. Step 6: Final answer
   x = 75,997.79