Finding the Third Proportional to 3,499,556 and 7,278,466

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499,556 : 7,278,466 = 7,278,466 : x
2. Step 2: Convert to fraction form
   3,499,556/7,278,466 = 7,278,466/x
3. Step 3: Cross multiply
   3,499,556x = 7,278,466 × 7,278,466
4. Step 4: Simplify right side
   3,499,556x = 52,976,067,313,156
5. Step 5: Solve for x
   x = 52,976,067,313,156/3,499,556
6. Step 6: Final answer
   x = 15,137,939.59