Finding the Third Proportional to 268,714.50 and 401,667

Step by Step Solution

1. Step 1: Write the proportion equation
   268,714.50 : 401,667 = 401,667 : x
2. Step 2: Convert to fraction form
   268,714.50/401,667 = 401,667/x
3. Step 3: Cross multiply
   268,714.50x = 401,667 × 401,667
4. Step 4: Simplify right side
   268,714.50x = 161,336,378,889
5. Step 5: Solve for x
   x = 161,336,378,889/268,714.50
6. Step 6: Final answer
   x = 600,400.72