Finding the Third Proportional to 155,968 and 251,180

Step by Step Solution

1. Step 1: Write the proportion equation
   155,968 : 251,180 = 251,180 : x
2. Step 2: Convert to fraction form
   155,968/251,180 = 251,180/x
3. Step 3: Cross multiply
   155,968x = 251,180 × 251,180
4. Step 4: Simplify right side
   155,968x = 63,091,392,400
5. Step 5: Solve for x
   x = 63,091,392,400/155,968
6. Step 6: Final answer
   x = 404,514.98