Finding the Third Proportional to 80,355 and 168,054

Step by Step Solution

1. Step 1: Write the proportion equation
   80,355 : 168,054 = 168,054 : x
2. Step 2: Convert to fraction form
   80,355/168,054 = 168,054/x
3. Step 3: Cross multiply
   80,355x = 168,054 × 168,054
4. Step 4: Simplify right side
   80,355x = 28,242,146,916
5. Step 5: Solve for x
   x = 28,242,146,916/80,355
6. Step 6: Final answer
   x = 351,467.20