Finding the Third Proportional to 12,661,636.50 and 25,770,742.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,661,636.50 : 25,770,742.31 = 25,770,742.31 : x
2. Step 2: Convert to fraction form
   12,661,636.50/25,770,742.31 = 25,770,742.31/x
3. Step 3: Cross multiply
   12,661,636.50x = 25,770,742.31 × 25,770,742.31
4. Step 4: Simplify right side
   12,661,636.50x = 664,131,159,337,277.88
5. Step 5: Solve for x
   x = 664,131,159,337,277.88/12,661,636.50
6. Step 6: Final answer
   x = 52,452,237.07