Finding the Third Proportional to 168,856.50 and 267,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,856.50 : 267,379.50 = 267,379.50 : x
2. Step 2: Convert to fraction form
   168,856.50/267,379.50 = 267,379.50/x
3. Step 3: Cross multiply
   168,856.50x = 267,379.50 × 267,379.50
4. Step 4: Simplify right side
   168,856.50x = 71,491,797,020.25
5. Step 5: Solve for x
   x = 71,491,797,020.25/168,856.50
6. Step 6: Final answer
   x = 423,387.89