Finding the Third Proportional to 31,197.75 and 67,071.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,197.75 : 67,071.38 = 67,071.38 : x
2. Step 2: Convert to fraction form
   31,197.75/67,071.38 = 67,071.38/x
3. Step 3: Cross multiply
   31,197.75x = 67,071.38 × 67,071.38
4. Step 4: Simplify right side
   31,197.75x = 4,498,569,344.39
5. Step 5: Solve for x
   x = 4,498,569,344.39/31,197.75
6. Step 6: Final answer
   x = 144,195.31