Finding the Third Proportional to 216,966 and 472,488

Step by Step Solution

1. Step 1: Write the proportion equation
   216,966 : 472,488 = 472,488 : x
2. Step 2: Convert to fraction form
   216,966/472,488 = 472,488/x
3. Step 3: Cross multiply
   216,966x = 472,488 × 472,488
4. Step 4: Simplify right side
   216,966x = 223,244,910,144
5. Step 5: Solve for x
   x = 223,244,910,144/216,966
6. Step 6: Final answer
   x = 1,028,939.60