Finding the Third Proportional to 98,636.25 and 139,568.25

Step by Step Solution

1. Step 1: Write the proportion equation
   98,636.25 : 139,568.25 = 139,568.25 : x
2. Step 2: Convert to fraction form
   98,636.25/139,568.25 = 139,568.25/x
3. Step 3: Cross multiply
   98,636.25x = 139,568.25 × 139,568.25
4. Step 4: Simplify right side
   98,636.25x = 19,479,296,408.06
5. Step 5: Solve for x
   x = 19,479,296,408.06/98,636.25
6. Step 6: Final answer
   x = 197,486.18