Finding the Third Proportional to 2,676,870 and 4,078,039

Step by Step Solution

1. Step 1: Write the proportion equation
   2,676,870 : 4,078,039 = 4,078,039 : x
2. Step 2: Convert to fraction form
   2,676,870/4,078,039 = 4,078,039/x
3. Step 3: Cross multiply
   2,676,870x = 4,078,039 × 4,078,039
4. Step 4: Simplify right side
   2,676,870x = 16,630,402,085,521
5. Step 5: Solve for x
   x = 16,630,402,085,521/2,676,870
6. Step 6: Final answer
   x = 6,212,629.71