Finding the Third Proportional to 2,873,138 and 4,284,790

Step by Step Solution

1. Step 1: Write the proportion equation
   2,873,138 : 4,284,790 = 4,284,790 : x
2. Step 2: Convert to fraction form
   2,873,138/4,284,790 = 4,284,790/x
3. Step 3: Cross multiply
   2,873,138x = 4,284,790 × 4,284,790
4. Step 4: Simplify right side
   2,873,138x = 18,359,425,344,100
5. Step 5: Solve for x
   x = 18,359,425,344,100/2,873,138
6. Step 6: Final answer
   x = 6,390,025.59