Finding the Third Proportional to 111,172.50 and 229,716

Step by Step Solution

1. Step 1: Write the proportion equation
   111,172.50 : 229,716 = 229,716 : x
2. Step 2: Convert to fraction form
   111,172.50/229,716 = 229,716/x
3. Step 3: Cross multiply
   111,172.50x = 229,716 × 229,716
4. Step 4: Simplify right side
   111,172.50x = 52,769,440,656
5. Step 5: Solve for x
   x = 52,769,440,656/111,172.50
6. Step 6: Final answer
   x = 474,662.71