Finding the Third Proportional to 815,844 and 1,767,256

Step by Step Solution

1. Step 1: Write the proportion equation
   815,844 : 1,767,256 = 1,767,256 : x
2. Step 2: Convert to fraction form
   815,844/1,767,256 = 1,767,256/x
3. Step 3: Cross multiply
   815,844x = 1,767,256 × 1,767,256
4. Step 4: Simplify right side
   815,844x = 3,123,193,769,536
5. Step 5: Solve for x
   x = 3,123,193,769,536/815,844
6. Step 6: Final answer
   x = 3,828,175.20