Finding the Third Proportional to 12,940,704 and 20,298,384

Step by Step Solution

1. Step 1: Write the proportion equation
   12,940,704 : 20,298,384 = 20,298,384 : x
2. Step 2: Convert to fraction form
   12,940,704/20,298,384 = 20,298,384/x
3. Step 3: Cross multiply
   12,940,704x = 20,298,384 × 20,298,384
4. Step 4: Simplify right side
   12,940,704x = 412,024,393,011,456
5. Step 5: Solve for x
   x = 412,024,393,011,456/12,940,704
6. Step 6: Final answer
   x = 31,839,410.98