Finding the Third Proportional to 142,719 and 222,247.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,719 : 222,247.50 = 222,247.50 : x
2. Step 2: Convert to fraction form
   142,719/222,247.50 = 222,247.50/x
3. Step 3: Cross multiply
   142,719x = 222,247.50 × 222,247.50
4. Step 4: Simplify right side
   142,719x = 49,393,951,256.25
5. Step 5: Solve for x
   x = 49,393,951,256.25/142,719
6. Step 6: Final answer
   x = 346,092.33