Finding the Third Proportional to 815,137 and 1,787,736

Step by Step Solution

1. Step 1: Write the proportion equation
   815,137 : 1,787,736 = 1,787,736 : x
2. Step 2: Convert to fraction form
   815,137/1,787,736 = 1,787,736/x
3. Step 3: Cross multiply
   815,137x = 1,787,736 × 1,787,736
4. Step 4: Simplify right side
   815,137x = 3,196,000,005,696
5. Step 5: Solve for x
   x = 3,196,000,005,696/815,137
6. Step 6: Final answer
   x = 3,920,813.32