Finding the Third Proportional to 815,836 and 1,767,240

Step by Step Solution

1. Step 1: Write the proportion equation
   815,836 : 1,767,240 = 1,767,240 : x
2. Step 2: Convert to fraction form
   815,836/1,767,240 = 1,767,240/x
3. Step 3: Cross multiply
   815,836x = 1,767,240 × 1,767,240
4. Step 4: Simplify right side
   815,836x = 3,123,137,217,600
5. Step 5: Solve for x
   x = 3,123,137,217,600/815,836
6. Step 6: Final answer
   x = 3,828,143.42