Finding the Third Proportional to 21,819.81 and 33,363.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,819.81 : 33,363.81 = 33,363.81 : x
2. Step 2: Convert to fraction form
   21,819.81/33,363.81 = 33,363.81/x
3. Step 3: Cross multiply
   21,819.81x = 33,363.81 × 33,363.81
4. Step 4: Simplify right side
   21,819.81x = 1,113,143,984.54
5. Step 5: Solve for x
   x = 1,113,143,984.54/21,819.81
6. Step 6: Final answer
   x = 51,015.29