Finding the Third Proportional to 142,351.50 and 222,154.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,351.50 : 222,154.50 = 222,154.50 : x
2. Step 2: Convert to fraction form
   142,351.50/222,154.50 = 222,154.50/x
3. Step 3: Cross multiply
   142,351.50x = 222,154.50 × 222,154.50
4. Step 4: Simplify right side
   142,351.50x = 49,352,621,870.25
5. Step 5: Solve for x
   x = 49,352,621,870.25/142,351.50
6. Step 6: Final answer
   x = 346,695.48