Finding the Third Proportional to 1,864,336 and 3,972,704

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864,336 : 3,972,704 = 3,972,704 : x
2. Step 2: Convert to fraction form
   1,864,336/3,972,704 = 3,972,704/x
3. Step 3: Cross multiply
   1,864,336x = 3,972,704 × 3,972,704
4. Step 4: Simplify right side
   1,864,336x = 15,782,377,071,616
5. Step 5: Solve for x
   x = 15,782,377,071,616/1,864,336
6. Step 6: Final answer
   x = 8,465,414.53