Finding the Third Proportional to 1,815,336 and 3,910,756

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815,336 : 3,910,756 = 3,910,756 : x
2. Step 2: Convert to fraction form
   1,815,336/3,910,756 = 3,910,756/x
3. Step 3: Cross multiply
   1,815,336x = 3,910,756 × 3,910,756
4. Step 4: Simplify right side
   1,815,336x = 15,294,012,491,536
5. Step 5: Solve for x
   x = 15,294,012,491,536/1,815,336
6. Step 6: Final answer
   x = 8,424,893.51