Finding the Third Proportional to 1,864,320 and 3,972,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864,320 : 3,972,672 = 3,972,672 : x
2. Step 2: Convert to fraction form
   1,864,320/3,972,672 = 3,972,672/x
3. Step 3: Cross multiply
   1,864,320x = 3,972,672 × 3,972,672
4. Step 4: Simplify right side
   1,864,320x = 15,782,122,819,584
5. Step 5: Solve for x
   x = 15,782,122,819,584/1,864,320
6. Step 6: Final answer
   x = 8,465,350.81