Finding the Third Proportional to 1,976,890 and 4,338,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976,890 : 4,338,690 = 4,338,690 : x
2. Step 2: Convert to fraction form
   1,976,890/4,338,690 = 4,338,690/x
3. Step 3: Cross multiply
   1,976,890x = 4,338,690 × 4,338,690
4. Step 4: Simplify right side
   1,976,890x = 18,824,230,916,100
5. Step 5: Solve for x
   x = 18,824,230,916,100/1,976,890
6. Step 6: Final answer
   x = 9,522,143.83