Finding the Third Proportional to 67,556 and 143,860

Step by Step Solution

1. Step 1: Write the proportion equation
   67,556 : 143,860 = 143,860 : x
2. Step 2: Convert to fraction form
   67,556/143,860 = 143,860/x
3. Step 3: Cross multiply
   67,556x = 143,860 × 143,860
4. Step 4: Simplify right side
   67,556x = 20,695,699,600
5. Step 5: Solve for x
   x = 20,695,699,600/67,556
6. Step 6: Final answer
   x = 306,348.80