Finding the Third Proportional to 2,122,190 and 4,603,257

Step by Step Solution

1. Step 1: Write the proportion equation
   2,122,190 : 4,603,257 = 4,603,257 : x
2. Step 2: Convert to fraction form
   2,122,190/4,603,257 = 4,603,257/x
3. Step 3: Cross multiply
   2,122,190x = 4,603,257 × 4,603,257
4. Step 4: Simplify right side
   2,122,190x = 21,189,975,008,049
5. Step 5: Solve for x
   x = 21,189,975,008,049/2,122,190
6. Step 6: Final answer
   x = 9,984,956.58