Finding the Third Proportional to 2,611,978 and 3,957,470

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611,978 : 3,957,470 = 3,957,470 : x
2. Step 2: Convert to fraction form
   2,611,978/3,957,470 = 3,957,470/x
3. Step 3: Cross multiply
   2,611,978x = 3,957,470 × 3,957,470
4. Step 4: Simplify right side
   2,611,978x = 15,661,568,800,900
5. Step 5: Solve for x
   x = 15,661,568,800,900/2,611,978
6. Step 6: Final answer
   x = 5,996,056.93