Finding the Third Proportional to 611,635 and 1,279,039

Step by Step Solution

1. Step 1: Write the proportion equation
   611,635 : 1,279,039 = 1,279,039 : x
2. Step 2: Convert to fraction form
   611,635/1,279,039 = 1,279,039/x
3. Step 3: Cross multiply
   611,635x = 1,279,039 × 1,279,039
4. Step 4: Simplify right side
   611,635x = 1,635,940,763,521
5. Step 5: Solve for x
   x = 1,635,940,763,521/611,635
6. Step 6: Final answer
   x = 2,674,701.03