Finding the Third Proportional to 31,007 and 67,162

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007 : 67,162 = 67,162 : x
2. Step 2: Convert to fraction form
   31,007/67,162 = 67,162/x
3. Step 3: Cross multiply
   31,007x = 67,162 × 67,162
4. Step 4: Simplify right side
   31,007x = 4,510,734,244
5. Step 5: Solve for x
   x = 4,510,734,244/31,007
6. Step 6: Final answer
   x = 145,474.71