Finding the Third Proportional to 13,968 and 20,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,968 : 20,707.50 = 20,707.50 : x
2. Step 2: Convert to fraction form
   13,968/20,707.50 = 20,707.50/x
3. Step 3: Cross multiply
   13,968x = 20,707.50 × 20,707.50
4. Step 4: Simplify right side
   13,968x = 428,800,556.25
5. Step 5: Solve for x
   x = 428,800,556.25/13,968
6. Step 6: Final answer
   x = 30,698.78