Finding the Third Proportional to 1,392,108 and 3,039,888

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,108 : 3,039,888 = 3,039,888 : x
2. Step 2: Convert to fraction form
   1,392,108/3,039,888 = 3,039,888/x
3. Step 3: Cross multiply
   1,392,108x = 3,039,888 × 3,039,888
4. Step 4: Simplify right side
   1,392,108x = 9,240,919,052,544
5. Step 5: Solve for x
   x = 9,240,919,052,544/1,392,108
6. Step 6: Final answer
   x = 6,638,076.25