Finding the Third Proportional to 3,887,961 and 8,483,416

Step by Step Solution

1. Step 1: Write the proportion equation
   3,887,961 : 8,483,416 = 8,483,416 : x
2. Step 2: Convert to fraction form
   3,887,961/8,483,416 = 8,483,416/x
3. Step 3: Cross multiply
   3,887,961x = 8,483,416 × 8,483,416
4. Step 4: Simplify right side
   3,887,961x = 71,968,347,029,056
5. Step 5: Solve for x
   x = 71,968,347,029,056/3,887,961
6. Step 6: Final answer
   x = 18,510,563.00