Finding the Third Proportional to 726,342 and 1,200,393

Step by Step Solution

1. Step 1: Write the proportion equation
   726,342 : 1,200,393 = 1,200,393 : x
2. Step 2: Convert to fraction form
   726,342/1,200,393 = 1,200,393/x
3. Step 3: Cross multiply
   726,342x = 1,200,393 × 1,200,393
4. Step 4: Simplify right side
   726,342x = 1,440,943,354,449
5. Step 5: Solve for x
   x = 1,440,943,354,449/726,342
6. Step 6: Final answer
   x = 1,983,835.93