Finding the Third Proportional to 12,808,150 and 19,810,743

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808,150 : 19,810,743 = 19,810,743 : x
2. Step 2: Convert to fraction form
   12,808,150/19,810,743 = 19,810,743/x
3. Step 3: Cross multiply
   12,808,150x = 19,810,743 × 19,810,743
4. Step 4: Simplify right side
   12,808,150x = 392,465,538,212,049
5. Step 5: Solve for x
   x = 392,465,538,212,049/12,808,150
6. Step 6: Final answer
   x = 30,641,859.93