Finding the Third Proportional to 20,650.50 and 28,732.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,650.50 : 28,732.50 = 28,732.50 : x
2. Step 2: Convert to fraction form
   20,650.50/28,732.50 = 28,732.50/x
3. Step 3: Cross multiply
   20,650.50x = 28,732.50 × 28,732.50
4. Step 4: Simplify right side
   20,650.50x = 825,556,556.25
5. Step 5: Solve for x
   x = 825,556,556.25/20,650.50
6. Step 6: Final answer
   x = 39,977.56