Finding the Third Proportional to 12,808,119 and 19,810,695

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808,119 : 19,810,695 = 19,810,695 : x
2. Step 2: Convert to fraction form
   12,808,119/19,810,695 = 19,810,695/x
3. Step 3: Cross multiply
   12,808,119x = 19,810,695 × 19,810,695
4. Step 4: Simplify right side
   12,808,119x = 392,463,636,383,025
5. Step 5: Solve for x
   x = 392,463,636,383,025/12,808,119
6. Step 6: Final answer
   x = 30,641,785.60