Finding the Third Proportional to 187,492 and 404,450

Step by Step Solution

1. Step 1: Write the proportion equation
   187,492 : 404,450 = 404,450 : x
2. Step 2: Convert to fraction form
   187,492/404,450 = 404,450/x
3. Step 3: Cross multiply
   187,492x = 404,450 × 404,450
4. Step 4: Simplify right side
   187,492x = 163,579,802,500
5. Step 5: Solve for x
   x = 163,579,802,500/187,492
6. Step 6: Final answer
   x = 872,462.84