Finding the Third Proportional to 82,156 and 168,198

Step by Step Solution

1. Step 1: Write the proportion equation
   82,156 : 168,198 = 168,198 : x
2. Step 2: Convert to fraction form
   82,156/168,198 = 168,198/x
3. Step 3: Cross multiply
   82,156x = 168,198 × 168,198
4. Step 4: Simplify right side
   82,156x = 28,290,567,204
5. Step 5: Solve for x
   x = 28,290,567,204/82,156
6. Step 6: Final answer
   x = 344,351.81