Finding the Third Proportional to 103,698 and 222,132

Step by Step Solution

1. Step 1: Write the proportion equation
   103,698 : 222,132 = 222,132 : x
2. Step 2: Convert to fraction form
   103,698/222,132 = 222,132/x
3. Step 3: Cross multiply
   103,698x = 222,132 × 222,132
4. Step 4: Simplify right side
   103,698x = 49,342,625,424
5. Step 5: Solve for x
   x = 49,342,625,424/103,698
6. Step 6: Final answer
   x = 475,830.06