Finding the Third Proportional to 728,460 and 1,105,812

Step by Step Solution

1. Step 1: Write the proportion equation
   728,460 : 1,105,812 = 1,105,812 : x
2. Step 2: Convert to fraction form
   728,460/1,105,812 = 1,105,812/x
3. Step 3: Cross multiply
   728,460x = 1,105,812 × 1,105,812
4. Step 4: Simplify right side
   728,460x = 1,222,820,179,344
5. Step 5: Solve for x
   x = 1,222,820,179,344/728,460
6. Step 6: Final answer
   x = 1,678,637.37