Finding the Third Proportional to 809,456 and 1,187,940

Step by Step Solution

1. Step 1: Write the proportion equation
   809,456 : 1,187,940 = 1,187,940 : x
2. Step 2: Convert to fraction form
   809,456/1,187,940 = 1,187,940/x
3. Step 3: Cross multiply
   809,456x = 1,187,940 × 1,187,940
4. Step 4: Simplify right side
   809,456x = 1,411,201,443,600
5. Step 5: Solve for x
   x = 1,411,201,443,600/809,456
6. Step 6: Final answer
   x = 1,743,394.88