Finding the Third Proportional to 820,326 and 1,283,919

Step by Step Solution

1. Step 1: Write the proportion equation
   820,326 : 1,283,919 = 1,283,919 : x
2. Step 2: Convert to fraction form
   820,326/1,283,919 = 1,283,919/x
3. Step 3: Cross multiply
   820,326x = 1,283,919 × 1,283,919
4. Step 4: Simplify right side
   820,326x = 1,648,447,998,561
5. Step 5: Solve for x
   x = 1,648,447,998,561/820,326
6. Step 6: Final answer
   x = 2,009,503.54