Finding the Third Proportional to 12,220,665 and 25,435,590

Step by Step Solution

1. Step 1: Write the proportion equation
   12,220,665 : 25,435,590 = 25,435,590 : x
2. Step 2: Convert to fraction form
   12,220,665/25,435,590 = 25,435,590/x
3. Step 3: Cross multiply
   12,220,665x = 25,435,590 × 25,435,590
4. Step 4: Simplify right side
   12,220,665x = 646,969,238,648,100
5. Step 5: Solve for x
   x = 646,969,238,648,100/12,220,665
6. Step 6: Final answer
   x = 52,940,591.91