Finding the Third Proportional to 80,899 and 168,254

Step by Step Solution

1. Step 1: Write the proportion equation
   80,899 : 168,254 = 168,254 : x
2. Step 2: Convert to fraction form
   80,899/168,254 = 168,254/x
3. Step 3: Cross multiply
   80,899x = 168,254 × 168,254
4. Step 4: Simplify right side
   80,899x = 28,309,408,516
5. Step 5: Solve for x
   x = 28,309,408,516/80,899
6. Step 6: Final answer
   x = 349,935.21