Finding the Third Proportional to 87,792 and 188,907

Step by Step Solution

1. Step 1: Write the proportion equation
   87,792 : 188,907 = 188,907 : x
2. Step 2: Convert to fraction form
   87,792/188,907 = 188,907/x
3. Step 3: Cross multiply
   87,792x = 188,907 × 188,907
4. Step 4: Simplify right side
   87,792x = 35,685,854,649
5. Step 5: Solve for x
   x = 35,685,854,649/87,792
6. Step 6: Final answer
   x = 406,481.85