Finding the Third Proportional to 820,368 and 1,241,886

Step by Step Solution

1. Step 1: Write the proportion equation
   820,368 : 1,241,886 = 1,241,886 : x
2. Step 2: Convert to fraction form
   820,368/1,241,886 = 1,241,886/x
3. Step 3: Cross multiply
   820,368x = 1,241,886 × 1,241,886
4. Step 4: Simplify right side
   820,368x = 1,542,280,836,996
5. Step 5: Solve for x
   x = 1,542,280,836,996/820,368
6. Step 6: Final answer
   x = 1,879,986.59