Finding the Third Proportional to 344,928 and 740,256

Step by Step Solution

1. Step 1: Write the proportion equation
   344,928 : 740,256 = 740,256 : x
2. Step 2: Convert to fraction form
   344,928/740,256 = 740,256/x
3. Step 3: Cross multiply
   344,928x = 740,256 × 740,256
4. Step 4: Simplify right side
   344,928x = 547,978,945,536
5. Step 5: Solve for x
   x = 547,978,945,536/344,928
6. Step 6: Final answer
   x = 1,588,676.32