Finding the Third Proportional to 21,391.31 and 33,253.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,391.31 : 33,253.63 = 33,253.63 : x
2. Step 2: Convert to fraction form
   21,391.31/33,253.63 = 33,253.63/x
3. Step 3: Cross multiply
   21,391.31x = 33,253.63 × 33,253.63
4. Step 4: Simplify right side
   21,391.31x = 1,105,803,575.64
5. Step 5: Solve for x
   x = 1,105,803,575.64/21,391.31
6. Step 6: Final answer
   x = 51,694.05