Finding the Third Proportional to 1,778,198 and 3,893,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,198 : 3,893,680 = 3,893,680 : x
2. Step 2: Convert to fraction form
   1,778,198/3,893,680 = 3,893,680/x
3. Step 3: Cross multiply
   1,778,198x = 3,893,680 × 3,893,680
4. Step 4: Simplify right side
   1,778,198x = 15,160,743,942,400
5. Step 5: Solve for x
   x = 15,160,743,942,400/1,778,198
6. Step 6: Final answer
   x = 8,525,903.16