Finding the Third Proportional to 222,993 and 317,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,993 : 317,880.50 = 317,880.50 : x
2. Step 2: Convert to fraction form
   222,993/317,880.50 = 317,880.50/x
3. Step 3: Cross multiply
   222,993x = 317,880.50 × 317,880.50
4. Step 4: Simplify right side
   222,993x = 101,048,012,280.25
5. Step 5: Solve for x
   x = 101,048,012,280.25/222,993
6. Step 6: Final answer
   x = 453,144.32