Finding the Third Proportional to 2,767,978 and 5,990,852

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767,978 : 5,990,852 = 5,990,852 : x
2. Step 2: Convert to fraction form
   2,767,978/5,990,852 = 5,990,852/x
3. Step 3: Cross multiply
   2,767,978x = 5,990,852 × 5,990,852
4. Step 4: Simplify right side
   2,767,978x = 35,890,307,685,904
5. Step 5: Solve for x
   x = 35,890,307,685,904/2,767,978
6. Step 6: Final answer
   x = 12,966,254.68