Finding the Third Proportional to 11,928.75 and 20,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,928.75 : 20,968.50 = 20,968.50 : x
2. Step 2: Convert to fraction form
   11,928.75/20,968.50 = 20,968.50/x
3. Step 3: Cross multiply
   11,928.75x = 20,968.50 × 20,968.50
4. Step 4: Simplify right side
   11,928.75x = 439,677,992.25
5. Step 5: Solve for x
   x = 439,677,992.25/11,928.75
6. Step 6: Final answer
   x = 36,858.68