Finding the Third Proportional to 143,396 and 222,764

Step by Step Solution

1. Step 1: Write the proportion equation
   143,396 : 222,764 = 222,764 : x
2. Step 2: Convert to fraction form
   143,396/222,764 = 222,764/x
3. Step 3: Cross multiply
   143,396x = 222,764 × 222,764
4. Step 4: Simplify right side
   143,396x = 49,623,799,696
5. Step 5: Solve for x
   x = 49,623,799,696/143,396
6. Step 6: Final answer
   x = 346,061.25