Finding the Third Proportional to 89,734 and 140,779

Step by Step Solution

1. Step 1: Write the proportion equation
   89,734 : 140,779 = 140,779 : x
2. Step 2: Convert to fraction form
   89,734/140,779 = 140,779/x
3. Step 3: Cross multiply
   89,734x = 140,779 × 140,779
4. Step 4: Simplify right side
   89,734x = 19,818,726,841
5. Step 5: Solve for x
   x = 19,818,726,841/89,734
6. Step 6: Final answer
   x = 220,860.84