Finding the Third Proportional to 30,686 and 63,556

Step by Step Solution

1. Step 1: Write the proportion equation
   30,686 : 63,556 = 63,556 : x
2. Step 2: Convert to fraction form
   30,686/63,556 = 63,556/x
3. Step 3: Cross multiply
   30,686x = 63,556 × 63,556
4. Step 4: Simplify right side
   30,686x = 4,039,365,136
5. Step 5: Solve for x
   x = 4,039,365,136/30,686
6. Step 6: Final answer
   x = 131,635.44