Finding the Third Proportional to 153,198 and 228,870

Step by Step Solution

1. Step 1: Write the proportion equation
   153,198 : 228,870 = 228,870 : x
2. Step 2: Convert to fraction form
   153,198/228,870 = 228,870/x
3. Step 3: Cross multiply
   153,198x = 228,870 × 228,870
4. Step 4: Simplify right side
   153,198x = 52,381,476,900
5. Step 5: Solve for x
   x = 52,381,476,900/153,198
6. Step 6: Final answer
   x = 341,920.11