Finding the Third Proportional to 1,393,458 and 2,036,419

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393,458 : 2,036,419 = 2,036,419 : x
2. Step 2: Convert to fraction form
   1,393,458/2,036,419 = 2,036,419/x
3. Step 3: Cross multiply
   1,393,458x = 2,036,419 × 2,036,419
4. Step 4: Simplify right side
   1,393,458x = 4,147,002,343,561
5. Step 5: Solve for x
   x = 4,147,002,343,561/1,393,458
6. Step 6: Final answer
   x = 2,976,051.19