Finding the Third Proportional to 108,918 and 171,162

Step by Step Solution

1. Step 1: Write the proportion equation
   108,918 : 171,162 = 171,162 : x
2. Step 2: Convert to fraction form
   108,918/171,162 = 171,162/x
3. Step 3: Cross multiply
   108,918x = 171,162 × 171,162
4. Step 4: Simplify right side
   108,918x = 29,296,430,244
5. Step 5: Solve for x
   x = 29,296,430,244/108,918
6. Step 6: Final answer
   x = 268,976.94