Finding the Third Proportional to 109,063.50 and 222,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,063.50 : 222,136.50 = 222,136.50 : x
2. Step 2: Convert to fraction form
   109,063.50/222,136.50 = 222,136.50/x
3. Step 3: Cross multiply
   109,063.50x = 222,136.50 × 222,136.50
4. Step 4: Simplify right side
   109,063.50x = 49,344,624,632.25
5. Step 5: Solve for x
   x = 49,344,624,632.25/109,063.50
6. Step 6: Final answer
   x = 452,439.40