Finding the Third Proportional to 123,852 and 204,909

Step by Step Solution

1. Step 1: Write the proportion equation
   123,852 : 204,909 = 204,909 : x
2. Step 2: Convert to fraction form
   123,852/204,909 = 204,909/x
3. Step 3: Cross multiply
   123,852x = 204,909 × 204,909
4. Step 4: Simplify right side
   123,852x = 41,987,698,281
5. Step 5: Solve for x
   x = 41,987,698,281/123,852
6. Step 6: Final answer
   x = 339,015.10