Finding the Third Proportional to 108,818 and 230,698

Step by Step Solution

1. Step 1: Write the proportion equation
   108,818 : 230,698 = 230,698 : x
2. Step 2: Convert to fraction form
   108,818/230,698 = 230,698/x
3. Step 3: Cross multiply
   108,818x = 230,698 × 230,698
4. Step 4: Simplify right side
   108,818x = 53,221,567,204
5. Step 5: Solve for x
   x = 53,221,567,204/108,818
6. Step 6: Final answer
   x = 489,087.90