Finding the Third Proportional to 1,215,353 and 2,649,394

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,353 : 2,649,394 = 2,649,394 : x
2. Step 2: Convert to fraction form
   1,215,353/2,649,394 = 2,649,394/x
3. Step 3: Cross multiply
   1,215,353x = 2,649,394 × 2,649,394
4. Step 4: Simplify right side
   1,215,353x = 7,019,288,567,236
5. Step 5: Solve for x
   x = 7,019,288,567,236/1,215,353
6. Step 6: Final answer
   x = 5,775,514.25