Finding the Third Proportional to 835,138 and 1,291,087

Step by Step Solution

1. Step 1: Write the proportion equation
   835,138 : 1,291,087 = 1,291,087 : x
2. Step 2: Convert to fraction form
   835,138/1,291,087 = 1,291,087/x
3. Step 3: Cross multiply
   835,138x = 1,291,087 × 1,291,087
4. Step 4: Simplify right side
   835,138x = 1,666,905,641,569
5. Step 5: Solve for x
   x = 1,666,905,641,569/835,138
6. Step 6: Final answer
   x = 1,995,964.31