Finding the Third Proportional to 1,392,121 and 3,039,914

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,121 : 3,039,914 = 3,039,914 : x
2. Step 2: Convert to fraction form
   1,392,121/3,039,914 = 3,039,914/x
3. Step 3: Cross multiply
   1,392,121x = 3,039,914 × 3,039,914
4. Step 4: Simplify right side
   1,392,121x = 9,241,077,127,396
5. Step 5: Solve for x
   x = 9,241,077,127,396/1,392,121
6. Step 6: Final answer
   x = 6,638,127.81