Finding the Third Proportional to 1,399,048 and 3,012,143

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,048 : 3,012,143 = 3,012,143 : x
2. Step 2: Convert to fraction form
   1,399,048/3,012,143 = 3,012,143/x
3. Step 3: Cross multiply
   1,399,048x = 3,012,143 × 3,012,143
4. Step 4: Simplify right side
   1,399,048x = 9,073,005,452,449
5. Step 5: Solve for x
   x = 9,073,005,452,449/1,399,048
6. Step 6: Final answer
   x = 6,485,128.07