Finding the Third Proportional to 81,450 and 171,648

Step by Step Solution

1. Step 1: Write the proportion equation
   81,450 : 171,648 = 171,648 : x
2. Step 2: Convert to fraction form
   81,450/171,648 = 171,648/x
3. Step 3: Cross multiply
   81,450x = 171,648 × 171,648
4. Step 4: Simplify right side
   81,450x = 29,463,035,904
5. Step 5: Solve for x
   x = 29,463,035,904/81,450
6. Step 6: Final answer
   x = 361,731.56