Finding the Third Proportional to 2,978,847 and 6,429,951

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,847 : 6,429,951 = 6,429,951 : x
2. Step 2: Convert to fraction form
   2,978,847/6,429,951 = 6,429,951/x
3. Step 3: Cross multiply
   2,978,847x = 6,429,951 × 6,429,951
4. Step 4: Simplify right side
   2,978,847x = 41,344,269,862,401
5. Step 5: Solve for x
   x = 41,344,269,862,401/2,978,847
6. Step 6: Final answer
   x = 13,879,286.13