Finding the Third Proportional to 30,886 and 67,556

Step by Step Solution

1. Step 1: Write the proportion equation
   30,886 : 67,556 = 67,556 : x
2. Step 2: Convert to fraction form
   30,886/67,556 = 67,556/x
3. Step 3: Cross multiply
   30,886x = 67,556 × 67,556
4. Step 4: Simplify right side
   30,886x = 4,563,813,136
5. Step 5: Solve for x
   x = 4,563,813,136/30,886
6. Step 6: Final answer
   x = 147,763.17