Finding the Third Proportional to 815,870 and 1,767,336

Step by Step Solution

1. Step 1: Write the proportion equation
   815,870 : 1,767,336 = 1,767,336 : x
2. Step 2: Convert to fraction form
   815,870/1,767,336 = 1,767,336/x
3. Step 3: Cross multiply
   815,870x = 1,767,336 × 1,767,336
4. Step 4: Simplify right side
   815,870x = 3,123,476,536,896
5. Step 5: Solve for x
   x = 3,123,476,536,896/815,870
6. Step 6: Final answer
   x = 3,828,399.79