Finding the Third Proportional to 3,198,381 and 7,550,268

Step by Step Solution

1. Step 1: Write the proportion equation
   3,198,381 : 7,550,268 = 7,550,268 : x
2. Step 2: Convert to fraction form
   3,198,381/7,550,268 = 7,550,268/x
3. Step 3: Cross multiply
   3,198,381x = 7,550,268 × 7,550,268
4. Step 4: Simplify right side
   3,198,381x = 57,006,546,871,824
5. Step 5: Solve for x
   x = 57,006,546,871,824/3,198,381
6. Step 6: Final answer
   x = 17,823,563.51