Finding the Third Proportional to 2,606,814 and 5,451,978

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606,814 : 5,451,978 = 5,451,978 : x
2. Step 2: Convert to fraction form
   2,606,814/5,451,978 = 5,451,978/x
3. Step 3: Cross multiply
   2,606,814x = 5,451,978 × 5,451,978
4. Step 4: Simplify right side
   2,606,814x = 29,724,064,112,484
5. Step 5: Solve for x
   x = 29,724,064,112,484/2,606,814
6. Step 6: Final answer
   x = 11,402,449.16