Finding the Third Proportional to 21,571.31 and 33,478.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,571.31 : 33,478.31 = 33,478.31 : x
2. Step 2: Convert to fraction form
   21,571.31/33,478.31 = 33,478.31/x
3. Step 3: Cross multiply
   21,571.31x = 33,478.31 × 33,478.31
4. Step 4: Simplify right side
   21,571.31x = 1,120,797,407.85
5. Step 5: Solve for x
   x = 1,120,797,407.85/21,571.31
6. Step 6: Final answer
   x = 51,957.78