Finding the Third Proportional to 758,826 and 1,143,243

Step by Step Solution

1. Step 1: Write the proportion equation
   758,826 : 1,143,243 = 1,143,243 : x
2. Step 2: Convert to fraction form
   758,826/1,143,243 = 1,143,243/x
3. Step 3: Cross multiply
   758,826x = 1,143,243 × 1,143,243
4. Step 4: Simplify right side
   758,826x = 1,307,004,557,049
5. Step 5: Solve for x
   x = 1,307,004,557,049/758,826
6. Step 6: Final answer
   x = 1,722,403.50