Finding the Third Proportional to 641,048 and 1,367,904

Step by Step Solution

1. Step 1: Write the proportion equation
   641,048 : 1,367,904 = 1,367,904 : x
2. Step 2: Convert to fraction form
   641,048/1,367,904 = 1,367,904/x
3. Step 3: Cross multiply
   641,048x = 1,367,904 × 1,367,904
4. Step 4: Simplify right side
   641,048x = 1,871,161,353,216
5. Step 5: Solve for x
   x = 1,871,161,353,216/641,048
6. Step 6: Final answer
   x = 2,918,909.90