Finding the Third Proportional to 98,620.22 and 139,546.78

Step by Step Solution

1. Step 1: Write the proportion equation
   98,620.22 : 139,546.78 = 139,546.78 : x
2. Step 2: Convert to fraction form
   98,620.22/139,546.78 = 139,546.78/x
3. Step 3: Cross multiply
   98,620.22x = 139,546.78 × 139,546.78
4. Step 4: Simplify right side
   98,620.22x = 19,473,304,157.24
5. Step 5: Solve for x
   x = 19,473,304,157.24/98,620.22
6. Step 6: Final answer
   x = 197,457.52