Finding the Third Proportional to 123,028 and 189,993

Step by Step Solution

1. Step 1: Write the proportion equation
   123,028 : 189,993 = 189,993 : x
2. Step 2: Convert to fraction form
   123,028/189,993 = 189,993/x
3. Step 3: Cross multiply
   123,028x = 189,993 × 189,993
4. Step 4: Simplify right side
   123,028x = 36,097,340,049
5. Step 5: Solve for x
   x = 36,097,340,049/123,028
6. Step 6: Final answer
   x = 293,407.52