Finding the Third Proportional to 33,811.50 and 72,313.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,811.50 : 72,313.50 = 72,313.50 : x
2. Step 2: Convert to fraction form
   33,811.50/72,313.50 = 72,313.50/x
3. Step 3: Cross multiply
   33,811.50x = 72,313.50 × 72,313.50
4. Step 4: Simplify right side
   33,811.50x = 5,229,242,282.25
5. Step 5: Solve for x
   x = 5,229,242,282.25/33,811.50
6. Step 6: Final answer
   x = 154,658.69