Finding the Third Proportional to 2,978,774 and 6,429,941

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,774 : 6,429,941 = 6,429,941 : x
2. Step 2: Convert to fraction form
   2,978,774/6,429,941 = 6,429,941/x
3. Step 3: Cross multiply
   2,978,774x = 6,429,941 × 6,429,941
4. Step 4: Simplify right side
   2,978,774x = 41,344,141,263,481
5. Step 5: Solve for x
   x = 41,344,141,263,481/2,978,774
6. Step 6: Final answer
   x = 13,879,583.10