Finding the Third Proportional to 1,920,386 and 4,138,204

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920,386 : 4,138,204 = 4,138,204 : x
2. Step 2: Convert to fraction form
   1,920,386/4,138,204 = 4,138,204/x
3. Step 3: Cross multiply
   1,920,386x = 4,138,204 × 4,138,204
4. Step 4: Simplify right side
   1,920,386x = 17,124,732,345,616
5. Step 5: Solve for x
   x = 17,124,732,345,616/1,920,386
6. Step 6: Final answer
   x = 8,917,338.67