Finding the Third Proportional to 748,674 and 1,623,456

Step by Step Solution

1. Step 1: Write the proportion equation
   748,674 : 1,623,456 = 1,623,456 : x
2. Step 2: Convert to fraction form
   748,674/1,623,456 = 1,623,456/x
3. Step 3: Cross multiply
   748,674x = 1,623,456 × 1,623,456
4. Step 4: Simplify right side
   748,674x = 2,635,609,383,936
5. Step 5: Solve for x
   x = 2,635,609,383,936/748,674
6. Step 6: Final answer
   x = 3,520,369.86