Finding the Third Proportional to 1,351,424 and 2,139,744

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351,424 : 2,139,744 = 2,139,744 : x
2. Step 2: Convert to fraction form
   1,351,424/2,139,744 = 2,139,744/x
3. Step 3: Cross multiply
   1,351,424x = 2,139,744 × 2,139,744
4. Step 4: Simplify right side
   1,351,424x = 4,578,504,385,536
5. Step 5: Solve for x
   x = 4,578,504,385,536/1,351,424
6. Step 6: Final answer
   x = 3,387,911.11