Finding the Third Proportional to 2,158,774 and 4,649,790

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,774 : 4,649,790 = 4,649,790 : x
2. Step 2: Convert to fraction form
   2,158,774/4,649,790 = 4,649,790/x
3. Step 3: Cross multiply
   2,158,774x = 4,649,790 × 4,649,790
4. Step 4: Simplify right side
   2,158,774x = 21,620,547,044,100
5. Step 5: Solve for x
   x = 21,620,547,044,100/2,158,774
6. Step 6: Final answer
   x = 10,015,197.07