Finding the Third Proportional to 171,878 and 369,150

Step by Step Solution

1. Step 1: Write the proportion equation
   171,878 : 369,150 = 369,150 : x
2. Step 2: Convert to fraction form
   171,878/369,150 = 369,150/x
3. Step 3: Cross multiply
   171,878x = 369,150 × 369,150
4. Step 4: Simplify right side
   171,878x = 136,271,722,500
5. Step 5: Solve for x
   x = 136,271,722,500/171,878
6. Step 6: Final answer
   x = 792,839.82