Finding the Third Proportional to 815,888 and 1,146,919

Step by Step Solution

1. Step 1: Write the proportion equation
   815,888 : 1,146,919 = 1,146,919 : x
2. Step 2: Convert to fraction form
   815,888/1,146,919 = 1,146,919/x
3. Step 3: Cross multiply
   815,888x = 1,146,919 × 1,146,919
4. Step 4: Simplify right side
   815,888x = 1,315,423,192,561
5. Step 5: Solve for x
   x = 1,315,423,192,561/815,888
6. Step 6: Final answer
   x = 1,612,259.52