Finding the Third Proportional to 748,618 and 1,623,348

Step by Step Solution

1. Step 1: Write the proportion equation
   748,618 : 1,623,348 = 1,623,348 : x
2. Step 2: Convert to fraction form
   748,618/1,623,348 = 1,623,348/x
3. Step 3: Cross multiply
   748,618x = 1,623,348 × 1,623,348
4. Step 4: Simplify right side
   748,618x = 2,635,258,729,104
5. Step 5: Solve for x
   x = 2,635,258,729,104/748,618
6. Step 6: Final answer
   x = 3,520,164.80