Finding the Third Proportional to 178,482 and 287,019

Step by Step Solution

1. Step 1: Write the proportion equation
   178,482 : 287,019 = 287,019 : x
2. Step 2: Convert to fraction form
   178,482/287,019 = 287,019/x
3. Step 3: Cross multiply
   178,482x = 287,019 × 287,019
4. Step 4: Simplify right side
   178,482x = 82,379,906,361
5. Step 5: Solve for x
   x = 82,379,906,361/178,482
6. Step 6: Final answer
   x = 461,558.62