Finding the Third Proportional to 1,403,140 and 3,086,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,140 : 3,086,216 = 3,086,216 : x
2. Step 2: Convert to fraction form
   1,403,140/3,086,216 = 3,086,216/x
3. Step 3: Cross multiply
   1,403,140x = 3,086,216 × 3,086,216
4. Step 4: Simplify right side
   1,403,140x = 9,524,729,198,656
5. Step 5: Solve for x
   x = 9,524,729,198,656/1,403,140
6. Step 6: Final answer
   x = 6,788,153.14