Finding the Third Proportional to 21,453.75 and 33,153.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,453.75 : 33,153.75 = 33,153.75 : x
2. Step 2: Convert to fraction form
   21,453.75/33,153.75 = 33,153.75/x
3. Step 3: Cross multiply
   21,453.75x = 33,153.75 × 33,153.75
4. Step 4: Simplify right side
   21,453.75x = 1,099,171,139.06
5. Step 5: Solve for x
   x = 1,099,171,139.06/21,453.75
6. Step 6: Final answer
   x = 51,234.45