Finding the Third Proportional to 20,556.28 and 30,986.30

Step by Step Solution

1. Step 1: Write the proportion equation
   20,556.28 : 30,986.30 = 30,986.30 : x
2. Step 2: Convert to fraction form
   20,556.28/30,986.30 = 30,986.30/x
3. Step 3: Cross multiply
   20,556.28x = 30,986.30 × 30,986.30
4. Step 4: Simplify right side
   20,556.28x = 960,150,594.03
5. Step 5: Solve for x
   x = 960,150,594.03/20,556.28
6. Step 6: Final answer
   x = 46,708.38