Finding the Third Proportional to 80,928 and 171,900

Step by Step Solution

1. Step 1: Write the proportion equation
   80,928 : 171,900 = 171,900 : x
2. Step 2: Convert to fraction form
   80,928/171,900 = 171,900/x
3. Step 3: Cross multiply
   80,928x = 171,900 × 171,900
4. Step 4: Simplify right side
   80,928x = 29,549,610,000
5. Step 5: Solve for x
   x = 29,549,610,000/80,928
6. Step 6: Final answer
   x = 365,134.56