Finding the Third Proportional to 2,840,402 and 3,995,211

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840,402 : 3,995,211 = 3,995,211 : x
2. Step 2: Convert to fraction form
   2,840,402/3,995,211 = 3,995,211/x
3. Step 3: Cross multiply
   2,840,402x = 3,995,211 × 3,995,211
4. Step 4: Simplify right side
   2,840,402x = 15,961,710,934,521
5. Step 5: Solve for x
   x = 15,961,710,934,521/2,840,402
6. Step 6: Final answer
   x = 5,619,525.31