Finding the Third Proportional to 178,492 and 388,084

Step by Step Solution

1. Step 1: Write the proportion equation
   178,492 : 388,084 = 388,084 : x
2. Step 2: Convert to fraction form
   178,492/388,084 = 388,084/x
3. Step 3: Cross multiply
   178,492x = 388,084 × 388,084
4. Step 4: Simplify right side
   178,492x = 150,609,191,056
5. Step 5: Solve for x
   x = 150,609,191,056/178,492
6. Step 6: Final answer
   x = 843,786.79