Finding the Third Proportional to 5,978,268 and 9,517,189

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978,268 : 9,517,189 = 9,517,189 : x
2. Step 2: Convert to fraction form
   5,978,268/9,517,189 = 9,517,189/x
3. Step 3: Cross multiply
   5,978,268x = 9,517,189 × 9,517,189
4. Step 4: Simplify right side
   5,978,268x = 90,576,886,461,721
5. Step 5: Solve for x
   x = 90,576,886,461,721/5,978,268
6. Step 6: Final answer
   x = 15,151,024.76