Finding the Third Proportional to 1,412,312 and 3,138,462

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412,312 : 3,138,462 = 3,138,462 : x
2. Step 2: Convert to fraction form
   1,412,312/3,138,462 = 3,138,462/x
3. Step 3: Cross multiply
   1,412,312x = 3,138,462 × 3,138,462
4. Step 4: Simplify right side
   1,412,312x = 9,849,943,725,444
5. Step 5: Solve for x
   x = 9,849,943,725,444/1,412,312
6. Step 6: Final answer
   x = 6,974,339.75