Finding the Third Proportional to 172,274 and 365,005

Step by Step Solution

1. Step 1: Write the proportion equation
   172,274 : 365,005 = 365,005 : x
2. Step 2: Convert to fraction form
   172,274/365,005 = 365,005/x
3. Step 3: Cross multiply
   172,274x = 365,005 × 365,005
4. Step 4: Simplify right side
   172,274x = 133,228,650,025
5. Step 5: Solve for x
   x = 133,228,650,025/172,274
6. Step 6: Final answer
   x = 773,353.20