Finding the Third Proportional to 99,982.13 and 140,617.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,982.13 : 140,617.69 = 140,617.69 : x
2. Step 2: Convert to fraction form
   99,982.13/140,617.69 = 140,617.69/x
3. Step 3: Cross multiply
   99,982.13x = 140,617.69 × 140,617.69
4. Step 4: Simplify right side
   99,982.13x = 19,773,334,037.85
5. Step 5: Solve for x
   x = 19,773,334,037.85/99,982.13
6. Step 6: Final answer
   x = 197,768.69