Finding the Third Proportional to 203,909 and 479,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   203,909 : 479,814.50 = 479,814.50 : x
2. Step 2: Convert to fraction form
   203,909/479,814.50 = 479,814.50/x
3. Step 3: Cross multiply
   203,909x = 479,814.50 × 479,814.50
4. Step 4: Simplify right side
   203,909x = 230,221,954,410.25
5. Step 5: Solve for x
   x = 230,221,954,410.25/203,909
6. Step 6: Final answer
   x = 1,129,042.63