Finding the Third Proportional to 408,048 and 875,144

Step by Step Solution

1. Step 1: Write the proportion equation
   408,048 : 875,144 = 875,144 : x
2. Step 2: Convert to fraction form
   408,048/875,144 = 875,144/x
3. Step 3: Cross multiply
   408,048x = 875,144 × 875,144
4. Step 4: Simplify right side
   408,048x = 765,877,020,736
5. Step 5: Solve for x
   x = 765,877,020,736/408,048
6. Step 6: Final answer
   x = 1,876,928.75