Finding the Third Proportional to 103,470 and 221,698

Step by Step Solution

1. Step 1: Write the proportion equation
   103,470 : 221,698 = 221,698 : x
2. Step 2: Convert to fraction form
   103,470/221,698 = 221,698/x
3. Step 3: Cross multiply
   103,470x = 221,698 × 221,698
4. Step 4: Simplify right side
   103,470x = 49,150,003,204
5. Step 5: Solve for x
   x = 49,150,003,204/103,470
6. Step 6: Final answer
   x = 475,016.94