Finding the Third Proportional to 2,587,148 and 5,442,397

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,148 : 5,442,397 = 5,442,397 : x
2. Step 2: Convert to fraction form
   2,587,148/5,442,397 = 5,442,397/x
3. Step 3: Cross multiply
   2,587,148x = 5,442,397 × 5,442,397
4. Step 4: Simplify right side
   2,587,148x = 29,619,685,105,609
5. Step 5: Solve for x
   x = 29,619,685,105,609/2,587,148
6. Step 6: Final answer
   x = 11,448,778.77