Finding the Third Proportional to 820,826 and 1,233,615

Step by Step Solution

1. Step 1: Write the proportion equation
   820,826 : 1,233,615 = 1,233,615 : x
2. Step 2: Convert to fraction form
   820,826/1,233,615 = 1,233,615/x
3. Step 3: Cross multiply
   820,826x = 1,233,615 × 1,233,615
4. Step 4: Simplify right side
   820,826x = 1,521,805,968,225
5. Step 5: Solve for x
   x = 1,521,805,968,225/820,826
6. Step 6: Final answer
   x = 1,853,993.38