Finding the Third Proportional to 188,836 and 410,872

Step by Step Solution

1. Step 1: Write the proportion equation
   188,836 : 410,872 = 410,872 : x
2. Step 2: Convert to fraction form
   188,836/410,872 = 410,872/x
3. Step 3: Cross multiply
   188,836x = 410,872 × 410,872
4. Step 4: Simplify right side
   188,836x = 168,815,800,384
5. Step 5: Solve for x
   x = 168,815,800,384/188,836
6. Step 6: Final answer
   x = 893,981.02