Finding the Third Proportional to 99,862 and 140,463

Step by Step Solution

1. Step 1: Write the proportion equation
   99,862 : 140,463 = 140,463 : x
2. Step 2: Convert to fraction form
   99,862/140,463 = 140,463/x
3. Step 3: Cross multiply
   99,862x = 140,463 × 140,463
4. Step 4: Simplify right side
   99,862x = 19,729,854,369
5. Step 5: Solve for x
   x = 19,729,854,369/99,862
6. Step 6: Final answer
   x = 197,571.19