Finding the Third Proportional to 386,446.78 and 568,123.03

Step by Step Solution

1. Step 1: Write the proportion equation
   386,446.78 : 568,123.03 = 568,123.03 : x
2. Step 2: Convert to fraction form
   386,446.78/568,123.03 = 568,123.03/x
3. Step 3: Cross multiply
   386,446.78x = 568,123.03 × 568,123.03
4. Step 4: Simplify right side
   386,446.78x = 322,763,778,636.69
5. Step 5: Solve for x
   x = 322,763,778,636.69/386,446.78
6. Step 6: Final answer
   x = 835,208.87