Finding the Third Proportional to 641,383.88 and 1,394,404.31

Step by Step Solution

1. Step 1: Write the proportion equation
   641,383.88 : 1,394,404.31 = 1,394,404.31 : x
2. Step 2: Convert to fraction form
   641,383.88/1,394,404.31 = 1,394,404.31/x
3. Step 3: Cross multiply
   641,383.88x = 1,394,404.31 × 1,394,404.31
4. Step 4: Simplify right side
   641,383.88x = 1,944,363,386,718.60
5. Step 5: Solve for x
   x = 1,944,363,386,718.60/641,383.88
6. Step 6: Final answer
   x = 3,031,512.74