Finding the Third Proportional to 223,095 and 339,870

Step by Step Solution

1. Step 1: Write the proportion equation
   223,095 : 339,870 = 339,870 : x
2. Step 2: Convert to fraction form
   223,095/339,870 = 339,870/x
3. Step 3: Cross multiply
   223,095x = 339,870 × 339,870
4. Step 4: Simplify right side
   223,095x = 115,511,616,900
5. Step 5: Solve for x
   x = 115,511,616,900/223,095
6. Step 6: Final answer
   x = 517,768.74