Finding the Third Proportional to 815,618 and 1,756,228

Step by Step Solution

1. Step 1: Write the proportion equation
   815,618 : 1,756,228 = 1,756,228 : x
2. Step 2: Convert to fraction form
   815,618/1,756,228 = 1,756,228/x
3. Step 3: Cross multiply
   815,618x = 1,756,228 × 1,756,228
4. Step 4: Simplify right side
   815,618x = 3,084,336,787,984
5. Step 5: Solve for x
   x = 3,084,336,787,984/815,618
6. Step 6: Final answer
   x = 3,781,594.80