Finding the Third Proportional to 823,320 and 1,236,960

Step by Step Solution

1. Step 1: Write the proportion equation
   823,320 : 1,236,960 = 1,236,960 : x
2. Step 2: Convert to fraction form
   823,320/1,236,960 = 1,236,960/x
3. Step 3: Cross multiply
   823,320x = 1,236,960 × 1,236,960
4. Step 4: Simplify right side
   823,320x = 1,530,070,041,600
5. Step 5: Solve for x
   x = 1,530,070,041,600/823,320
6. Step 6: Final answer
   x = 1,858,414.76