Finding the Third Proportional to 3,887,955 and 8,483,404

Step by Step Solution

1. Step 1: Write the proportion equation
   3,887,955 : 8,483,404 = 8,483,404 : x
2. Step 2: Convert to fraction form
   3,887,955/8,483,404 = 8,483,404/x
3. Step 3: Cross multiply
   3,887,955x = 8,483,404 × 8,483,404
4. Step 4: Simplify right side
   3,887,955x = 71,968,143,427,216
5. Step 5: Solve for x
   x = 71,968,143,427,216/3,887,955
6. Step 6: Final answer
   x = 18,510,539.20