Finding the Third Proportional to 105,653 and 143,899

Step by Step Solution

1. Step 1: Write the proportion equation
   105,653 : 143,899 = 143,899 : x
2. Step 2: Convert to fraction form
   105,653/143,899 = 143,899/x
3. Step 3: Cross multiply
   105,653x = 143,899 × 143,899
4. Step 4: Simplify right side
   105,653x = 20,706,922,201
5. Step 5: Solve for x
   x = 20,706,922,201/105,653
6. Step 6: Final answer
   x = 195,989.91