Finding the Third Proportional to 20,919 and 33,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,919 : 33,328.50 = 33,328.50 : x
2. Step 2: Convert to fraction form
   20,919/33,328.50 = 33,328.50/x
3. Step 3: Cross multiply
   20,919x = 33,328.50 × 33,328.50
4. Step 4: Simplify right side
   20,919x = 1,110,788,912.25
5. Step 5: Solve for x
   x = 1,110,788,912.25/20,919
6. Step 6: Final answer
   x = 53,099.52