Finding the Third Proportional to 179,919 and 268,888.50

Step by Step Solution

1. Step 1: Write the proportion equation
   179,919 : 268,888.50 = 268,888.50 : x
2. Step 2: Convert to fraction form
   179,919/268,888.50 = 268,888.50/x
3. Step 3: Cross multiply
   179,919x = 268,888.50 × 268,888.50
4. Step 4: Simplify right side
   179,919x = 72,301,025,432.25
5. Step 5: Solve for x
   x = 72,301,025,432.25/179,919
6. Step 6: Final answer
   x = 401,853.20