Finding the Third Proportional to 199,942 and 300,492

Step by Step Solution

1. Step 1: Write the proportion equation
   199,942 : 300,492 = 300,492 : x
2. Step 2: Convert to fraction form
   199,942/300,492 = 300,492/x
3. Step 3: Cross multiply
   199,942x = 300,492 × 300,492
4. Step 4: Simplify right side
   199,942x = 90,295,442,064
5. Step 5: Solve for x
   x = 90,295,442,064/199,942
6. Step 6: Final answer
   x = 451,608.18