Finding the Third Proportional to 219,458 and 472,210

Step by Step Solution

1. Step 1: Write the proportion equation
   219,458 : 472,210 = 472,210 : x
2. Step 2: Convert to fraction form
   219,458/472,210 = 472,210/x
3. Step 3: Cross multiply
   219,458x = 472,210 × 472,210
4. Step 4: Simplify right side
   219,458x = 222,982,284,100
5. Step 5: Solve for x
   x = 222,982,284,100/219,458
6. Step 6: Final answer
   x = 1,016,059.04