Finding the Third Proportional to 6,006,978 and 12,439,812

Step by Step Solution

1. Step 1: Write the proportion equation
   6,006,978 : 12,439,812 = 12,439,812 : x
2. Step 2: Convert to fraction form
   6,006,978/12,439,812 = 12,439,812/x
3. Step 3: Cross multiply
   6,006,978x = 12,439,812 × 12,439,812
4. Step 4: Simplify right side
   6,006,978x = 154,748,922,595,344
5. Step 5: Solve for x
   x = 154,748,922,595,344/6,006,978
6. Step 6: Final answer
   x = 25,761,526.44