Finding the Third Proportional to 171,958.50 and 278,577

Step by Step Solution

1. Step 1: Write the proportion equation
   171,958.50 : 278,577 = 278,577 : x
2. Step 2: Convert to fraction form
   171,958.50/278,577 = 278,577/x
3. Step 3: Cross multiply
   171,958.50x = 278,577 × 278,577
4. Step 4: Simplify right side
   171,958.50x = 77,605,144,929
5. Step 5: Solve for x
   x = 77,605,144,929/171,958.50
6. Step 6: Final answer
   x = 451,301.59