Finding the Third Proportional to 31,603.50 and 73,163.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,603.50 : 73,163.25 = 73,163.25 : x
2. Step 2: Convert to fraction form
   31,603.50/73,163.25 = 73,163.25/x
3. Step 3: Cross multiply
   31,603.50x = 73,163.25 × 73,163.25
4. Step 4: Simplify right side
   31,603.50x = 5,352,861,150.56
5. Step 5: Solve for x
   x = 5,352,861,150.56/31,603.50
6. Step 6: Final answer
   x = 169,375.58