Finding the Third Proportional to 613,869 and 1,339,245

Step by Step Solution

1. Step 1: Write the proportion equation
   613,869 : 1,339,245 = 1,339,245 : x
2. Step 2: Convert to fraction form
   613,869/1,339,245 = 1,339,245/x
3. Step 3: Cross multiply
   613,869x = 1,339,245 × 1,339,245
4. Step 4: Simplify right side
   613,869x = 1,793,577,170,025
5. Step 5: Solve for x
   x = 1,793,577,170,025/613,869
6. Step 6: Final answer
   x = 2,921,758.83