Finding the Third Proportional to 142,731 and 222,266.25

Step by Step Solution

1. Step 1: Write the proportion equation
   142,731 : 222,266.25 = 222,266.25 : x
2. Step 2: Convert to fraction form
   142,731/222,266.25 = 222,266.25/x
3. Step 3: Cross multiply
   142,731x = 222,266.25 × 222,266.25
4. Step 4: Simplify right side
   142,731x = 49,402,285,889.06
5. Step 5: Solve for x
   x = 49,402,285,889.06/142,731
6. Step 6: Final answer
   x = 346,121.63