Finding the Third Proportional to 2,777,098 and 4,200,478

Step by Step Solution

1. Step 1: Write the proportion equation
   2,777,098 : 4,200,478 = 4,200,478 : x
2. Step 2: Convert to fraction form
   2,777,098/4,200,478 = 4,200,478/x
3. Step 3: Cross multiply
   2,777,098x = 4,200,478 × 4,200,478
4. Step 4: Simplify right side
   2,777,098x = 17,644,015,428,484
5. Step 5: Solve for x
   x = 17,644,015,428,484/2,777,098
6. Step 6: Final answer
   x = 6,353,400.36