Finding the Third Proportional to 65,720 and 101,980

Step by Step Solution

1. Step 1: Write the proportion equation
   65,720 : 101,980 = 101,980 : x
2. Step 2: Convert to fraction form
   65,720/101,980 = 101,980/x
3. Step 3: Cross multiply
   65,720x = 101,980 × 101,980
4. Step 4: Simplify right side
   65,720x = 10,399,920,400
5. Step 5: Solve for x
   x = 10,399,920,400/65,720
6. Step 6: Final answer
   x = 158,245.90