Finding the Third Proportional to 90,162 and 198,756

Step by Step Solution

1. Step 1: Write the proportion equation
   90,162 : 198,756 = 198,756 : x
2. Step 2: Convert to fraction form
   90,162/198,756 = 198,756/x
3. Step 3: Cross multiply
   90,162x = 198,756 × 198,756
4. Step 4: Simplify right side
   90,162x = 39,503,947,536
5. Step 5: Solve for x
   x = 39,503,947,536/90,162
6. Step 6: Final answer
   x = 438,144.09