Finding the Third Proportional to 12,661,644 and 25,770,760

Step by Step Solution

1. Step 1: Write the proportion equation
   12,661,644 : 25,770,760 = 25,770,760 : x
2. Step 2: Convert to fraction form
   12,661,644/25,770,760 = 25,770,760/x
3. Step 3: Cross multiply
   12,661,644x = 25,770,760 × 25,770,760
4. Step 4: Simplify right side
   12,661,644x = 664,132,070,977,600
5. Step 5: Solve for x
   x = 664,132,070,977,600/12,661,644
6. Step 6: Final answer
   x = 52,452,278.00