Finding the Third Proportional to 215,478 and 472,104

Step by Step Solution

1. Step 1: Write the proportion equation
   215,478 : 472,104 = 472,104 : x
2. Step 2: Convert to fraction form
   215,478/472,104 = 472,104/x
3. Step 3: Cross multiply
   215,478x = 472,104 × 472,104
4. Step 4: Simplify right side
   215,478x = 222,882,186,816
5. Step 5: Solve for x
   x = 222,882,186,816/215,478
6. Step 6: Final answer
   x = 1,034,361.68