Finding the Third Proportional to 63,782 and 139,222

Step by Step Solution

1. Step 1: Write the proportion equation
   63,782 : 139,222 = 139,222 : x
2. Step 2: Convert to fraction form
   63,782/139,222 = 139,222/x
3. Step 3: Cross multiply
   63,782x = 139,222 × 139,222
4. Step 4: Simplify right side
   63,782x = 19,382,765,284
5. Step 5: Solve for x
   x = 19,382,765,284/63,782
6. Step 6: Final answer
   x = 303,890.84