Finding the Third Proportional to 1,399,147 and 3,012,348

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,147 : 3,012,348 = 3,012,348 : x
2. Step 2: Convert to fraction form
   1,399,147/3,012,348 = 3,012,348/x
3. Step 3: Cross multiply
   1,399,147x = 3,012,348 × 3,012,348
4. Step 4: Simplify right side
   1,399,147x = 9,074,240,473,104
5. Step 5: Solve for x
   x = 9,074,240,473,104/1,399,147
6. Step 6: Final answer
   x = 6,485,551.89