Finding the Third Proportional to 216,504 and 472,356

Step by Step Solution

1. Step 1: Write the proportion equation
   216,504 : 472,356 = 472,356 : x
2. Step 2: Convert to fraction form
   216,504/472,356 = 472,356/x
3. Step 3: Cross multiply
   216,504x = 472,356 × 472,356
4. Step 4: Simplify right side
   216,504x = 223,120,190,736
5. Step 5: Solve for x
   x = 223,120,190,736/216,504
6. Step 6: Final answer
   x = 1,030,559.21