Finding the Third Proportional to 1,392,122 and 3,039,916

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,122 : 3,039,916 = 3,039,916 : x
2. Step 2: Convert to fraction form
   1,392,122/3,039,916 = 3,039,916/x
3. Step 3: Cross multiply
   1,392,122x = 3,039,916 × 3,039,916
4. Step 4: Simplify right side
   1,392,122x = 9,241,089,287,056
5. Step 5: Solve for x
   x = 9,241,089,287,056/1,392,122
6. Step 6: Final answer
   x = 6,638,131.78