Finding the Third Proportional to 67,279 and 105,555

Step by Step Solution

1. Step 1: Write the proportion equation
   67,279 : 105,555 = 105,555 : x
2. Step 2: Convert to fraction form
   67,279/105,555 = 105,555/x
3. Step 3: Cross multiply
   67,279x = 105,555 × 105,555
4. Step 4: Simplify right side
   67,279x = 11,141,858,025
5. Step 5: Solve for x
   x = 11,141,858,025/67,279
6. Step 6: Final answer
   x = 165,606.77