Finding the Third Proportional to 142,491 and 222,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,491 : 222,364.50 = 222,364.50 : x
2. Step 2: Convert to fraction form
   142,491/222,364.50 = 222,364.50/x
3. Step 3: Cross multiply
   142,491x = 222,364.50 × 222,364.50
4. Step 4: Simplify right side
   142,491x = 49,445,970,860.25
5. Step 5: Solve for x
   x = 49,445,970,860.25/142,491
6. Step 6: Final answer
   x = 347,011.19