Finding the Third Proportional to 91,006,078.50 and 128,770,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,006,078.50 : 128,770,843.50 = 128,770,843.50 : x
2. Step 2: Convert to fraction form
   91,006,078.50/128,770,843.50 = 128,770,843.50/x
3. Step 3: Cross multiply
   91,006,078.50x = 128,770,843.50 × 128,770,843.50
4. Step 4: Simplify right side
   91,006,078.50x = 16,581,930,135,701,492
5. Step 5: Solve for x
   x = 16,581,930,135,701,492/91,006,078.50
6. Step 6: Final answer
   x = 182,206,841.66