Finding the Third Proportional to 12,515,980 and 25,991,188

Step by Step Solution

1. Step 1: Write the proportion equation
   12,515,980 : 25,991,188 = 25,991,188 : x
2. Step 2: Convert to fraction form
   12,515,980/25,991,188 = 25,991,188/x
3. Step 3: Cross multiply
   12,515,980x = 25,991,188 × 25,991,188
4. Step 4: Simplify right side
   12,515,980x = 675,541,853,651,344
5. Step 5: Solve for x
   x = 675,541,853,651,344/12,515,980
6. Step 6: Final answer
   x = 53,974,347.49