Finding the Third Proportional to 80,716.50 and 164,718

Step by Step Solution

1. Step 1: Write the proportion equation
   80,716.50 : 164,718 = 164,718 : x
2. Step 2: Convert to fraction form
   80,716.50/164,718 = 164,718/x
3. Step 3: Cross multiply
   80,716.50x = 164,718 × 164,718
4. Step 4: Simplify right side
   80,716.50x = 27,132,019,524
5. Step 5: Solve for x
   x = 27,132,019,524/80,716.50
6. Step 6: Final answer
   x = 336,139.69