Finding the Third Proportional to 2,113,778 and 4,631,542

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,778 : 4,631,542 = 4,631,542 : x
2. Step 2: Convert to fraction form
   2,113,778/4,631,542 = 4,631,542/x
3. Step 3: Cross multiply
   2,113,778x = 4,631,542 × 4,631,542
4. Step 4: Simplify right side
   2,113,778x = 21,451,181,297,764
5. Step 5: Solve for x
   x = 21,451,181,297,764/2,113,778
6. Step 6: Final answer
   x = 10,148,265.95