Finding the Third Proportional to 815,900 and 1,146,939

Step by Step Solution

1. Step 1: Write the proportion equation
   815,900 : 1,146,939 = 1,146,939 : x
2. Step 2: Convert to fraction form
   815,900/1,146,939 = 1,146,939/x
3. Step 3: Cross multiply
   815,900x = 1,146,939 × 1,146,939
4. Step 4: Simplify right side
   815,900x = 1,315,469,069,721
5. Step 5: Solve for x
   x = 1,315,469,069,721/815,900
6. Step 6: Final answer
   x = 1,612,292.03