Finding the Third Proportional to 1,328,778 and 2,061,450

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,778 : 2,061,450 = 2,061,450 : x
2. Step 2: Convert to fraction form
   1,328,778/2,061,450 = 2,061,450/x
3. Step 3: Cross multiply
   1,328,778x = 2,061,450 × 2,061,450
4. Step 4: Simplify right side
   1,328,778x = 4,249,576,102,500
5. Step 5: Solve for x
   x = 4,249,576,102,500/1,328,778
6. Step 6: Final answer
   x = 3,198,108.41