Finding the Third Proportional to 21,315 and 33,096.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,315 : 33,096.75 = 33,096.75 : x
2. Step 2: Convert to fraction form
   21,315/33,096.75 = 33,096.75/x
3. Step 3: Cross multiply
   21,315x = 33,096.75 × 33,096.75
4. Step 4: Simplify right side
   21,315x = 1,095,394,860.56
5. Step 5: Solve for x
   x = 1,095,394,860.56/21,315
6. Step 6: Final answer
   x = 51,390.80