Finding the Third Proportional to 819,120 and 1,222,368

Step by Step Solution

1. Step 1: Write the proportion equation
   819,120 : 1,222,368 = 1,222,368 : x
2. Step 2: Convert to fraction form
   819,120/1,222,368 = 1,222,368/x
3. Step 3: Cross multiply
   819,120x = 1,222,368 × 1,222,368
4. Step 4: Simplify right side
   819,120x = 1,494,183,527,424
5. Step 5: Solve for x
   x = 1,494,183,527,424/819,120
6. Step 6: Final answer
   x = 1,824,132.64