Finding the Third Proportional to 98,716 and 140,690

Step by Step Solution

1. Step 1: Write the proportion equation
   98,716 : 140,690 = 140,690 : x
2. Step 2: Convert to fraction form
   98,716/140,690 = 140,690/x
3. Step 3: Cross multiply
   98,716x = 140,690 × 140,690
4. Step 4: Simplify right side
   98,716x = 19,793,676,100
5. Step 5: Solve for x
   x = 19,793,676,100/98,716
6. Step 6: Final answer
   x = 200,511.33