Finding the Third Proportional to 1,143,288 and 2,438,397

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143,288 : 2,438,397 = 2,438,397 : x
2. Step 2: Convert to fraction form
   1,143,288/2,438,397 = 2,438,397/x
3. Step 3: Cross multiply
   1,143,288x = 2,438,397 × 2,438,397
4. Step 4: Simplify right side
   1,143,288x = 5,945,779,929,609
5. Step 5: Solve for x
   x = 5,945,779,929,609/1,143,288
6. Step 6: Final answer
   x = 5,200,596.81