Finding the Third Proportional to 128,824.50 and 197,067

Step by Step Solution

1. Step 1: Write the proportion equation
   128,824.50 : 197,067 = 197,067 : x
2. Step 2: Convert to fraction form
   128,824.50/197,067 = 197,067/x
3. Step 3: Cross multiply
   128,824.50x = 197,067 × 197,067
4. Step 4: Simplify right side
   128,824.50x = 38,835,402,489
5. Step 5: Solve for x
   x = 38,835,402,489/128,824.50
6. Step 6: Final answer
   x = 301,459.76