Finding the Third Proportional to 8,811,640.69 and 13,470,785.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,811,640.69 : 13,470,785.72 = 13,470,785.72 : x
2. Step 2: Convert to fraction form
   8,811,640.69/13,470,785.72 = 13,470,785.72/x
3. Step 3: Cross multiply
   8,811,640.69x = 13,470,785.72 × 13,470,785.72
4. Step 4: Simplify right side
   8,811,640.69x = 181,462,067,880,478.97
5. Step 5: Solve for x
   x = 181,462,067,880,478.97/8,811,640.69
6. Step 6: Final answer
   x = 20,593,448.41