Finding the Third Proportional to 90,692 and 142,993

Step by Step Solution

1. Step 1: Write the proportion equation
   90,692 : 142,993 = 142,993 : x
2. Step 2: Convert to fraction form
   90,692/142,993 = 142,993/x
3. Step 3: Cross multiply
   90,692x = 142,993 × 142,993
4. Step 4: Simplify right side
   90,692x = 20,446,998,049
5. Step 5: Solve for x
   x = 20,446,998,049/90,692
6. Step 6: Final answer
   x = 225,455.37