Finding the Third Proportional to 222,155.16 and 317,464.31

Step by Step Solution

1. Step 1: Write the proportion equation
   222,155.16 : 317,464.31 = 317,464.31 : x
2. Step 2: Convert to fraction form
   222,155.16/317,464.31 = 317,464.31/x
3. Step 3: Cross multiply
   222,155.16x = 317,464.31 × 317,464.31
4. Step 4: Simplify right side
   222,155.16x = 100,783,589,711.10
5. Step 5: Solve for x
   x = 100,783,589,711.10/222,155.16
6. Step 6: Final answer
   x = 453,663.07