Finding the Third Proportional to 171,665 and 372,885

Step by Step Solution

1. Step 1: Write the proportion equation
   171,665 : 372,885 = 372,885 : x
2. Step 2: Convert to fraction form
   171,665/372,885 = 372,885/x
3. Step 3: Cross multiply
   171,665x = 372,885 × 372,885
4. Step 4: Simplify right side
   171,665x = 139,043,223,225
5. Step 5: Solve for x
   x = 139,043,223,225/171,665
6. Step 6: Final answer
   x = 809,968.39