Finding the Third Proportional to 2,556,917 and 4,261,020

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,917 : 4,261,020 = 4,261,020 : x
2. Step 2: Convert to fraction form
   2,556,917/4,261,020 = 4,261,020/x
3. Step 3: Cross multiply
   2,556,917x = 4,261,020 × 4,261,020
4. Step 4: Simplify right side
   2,556,917x = 18,156,291,440,400
5. Step 5: Solve for x
   x = 18,156,291,440,400/2,556,917
6. Step 6: Final answer
   x = 7,100,852.88