Finding the Third Proportional to 3,879,303 and 8,430,096

Step by Step Solution

1. Step 1: Write the proportion equation
   3,879,303 : 8,430,096 = 8,430,096 : x
2. Step 2: Convert to fraction form
   3,879,303/8,430,096 = 8,430,096/x
3. Step 3: Cross multiply
   3,879,303x = 8,430,096 × 8,430,096
4. Step 4: Simplify right side
   3,879,303x = 71,066,518,569,216
5. Step 5: Solve for x
   x = 71,066,518,569,216/3,879,303
6. Step 6: Final answer
   x = 18,319,403.92