Finding the Third Proportional to 2,198,258 and 3,489,198

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198,258 : 3,489,198 = 3,489,198 : x
2. Step 2: Convert to fraction form
   2,198,258/3,489,198 = 3,489,198/x
3. Step 3: Cross multiply
   2,198,258x = 3,489,198 × 3,489,198
4. Step 4: Simplify right side
   2,198,258x = 12,174,502,683,204
5. Step 5: Solve for x
   x = 12,174,502,683,204/2,198,258
6. Step 6: Final answer
   x = 5,538,250.14