Finding the Third Proportional to 2,587,203 and 5,442,507

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,203 : 5,442,507 = 5,442,507 : x
2. Step 2: Convert to fraction form
   2,587,203/5,442,507 = 5,442,507/x
3. Step 3: Cross multiply
   2,587,203x = 5,442,507 × 5,442,507
4. Step 4: Simplify right side
   2,587,203x = 29,620,882,445,049
5. Step 5: Solve for x
   x = 29,620,882,445,049/2,587,203
6. Step 6: Final answer
   x = 11,448,998.18