Finding the Third Proportional to 33,315.50 and 71,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,315.50 : 71,571.50 = 71,571.50 : x
2. Step 2: Convert to fraction form
   33,315.50/71,571.50 = 71,571.50/x
3. Step 3: Cross multiply
   33,315.50x = 71,571.50 × 71,571.50
4. Step 4: Simplify right side
   33,315.50x = 5,122,479,612.25
5. Step 5: Solve for x
   x = 5,122,479,612.25/33,315.50
6. Step 6: Final answer
   x = 153,756.65