Finding the Third Proportional to 65,012 and 139,888

Step by Step Solution

1. Step 1: Write the proportion equation
   65,012 : 139,888 = 139,888 : x
2. Step 2: Convert to fraction form
   65,012/139,888 = 139,888/x
3. Step 3: Cross multiply
   65,012x = 139,888 × 139,888
4. Step 4: Simplify right side
   65,012x = 19,568,652,544
5. Step 5: Solve for x
   x = 19,568,652,544/65,012
6. Step 6: Final answer
   x = 301,000.62