Finding the Third Proportional to 222,234 and 338,818

Step by Step Solution

1. Step 1: Write the proportion equation
   222,234 : 338,818 = 338,818 : x
2. Step 2: Convert to fraction form
   222,234/338,818 = 338,818/x
3. Step 3: Cross multiply
   222,234x = 338,818 × 338,818
4. Step 4: Simplify right side
   222,234x = 114,797,637,124
5. Step 5: Solve for x
   x = 114,797,637,124/222,234
6. Step 6: Final answer
   x = 516,561.99