Finding the Third Proportional to 143,821.50 and 222,897

Step by Step Solution

1. Step 1: Write the proportion equation
   143,821.50 : 222,897 = 222,897 : x
2. Step 2: Convert to fraction form
   143,821.50/222,897 = 222,897/x
3. Step 3: Cross multiply
   143,821.50x = 222,897 × 222,897
4. Step 4: Simplify right side
   143,821.50x = 49,683,072,609
5. Step 5: Solve for x
   x = 49,683,072,609/143,821.50
6. Step 6: Final answer
   x = 345,449.55