Finding the Third Proportional to 192,469,287.50 and 395,141,956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   192,469,287.50 : 395,141,956.50 = 395,141,956.50 : x
2. Step 2: Convert to fraction form
   192,469,287.50/395,141,956.50 = 395,141,956.50/x
3. Step 3: Cross multiply
   192,469,287.50x = 395,141,956.50 × 395,141,956.50
4. Step 4: Simplify right side
   192,469,287.50x = 156,137,165,786,647,904
5. Step 5: Solve for x
   x = 156,137,165,786,647,904/192,469,287.50
6. Step 6: Final answer
   x = 811,231,588.24