Finding the Third Proportional to 809,434 and 1,187,906

Step by Step Solution

1. Step 1: Write the proportion equation
   809,434 : 1,187,906 = 1,187,906 : x
2. Step 2: Convert to fraction form
   809,434/1,187,906 = 1,187,906/x
3. Step 3: Cross multiply
   809,434x = 1,187,906 × 1,187,906
4. Step 4: Simplify right side
   809,434x = 1,411,120,664,836
5. Step 5: Solve for x
   x = 1,411,120,664,836/809,434
6. Step 6: Final answer
   x = 1,743,342.47