Finding the Third Proportional to 12,215,112.75 and 25,434,989.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,215,112.75 : 25,434,989.25 = 25,434,989.25 : x
2. Step 2: Convert to fraction form
   12,215,112.75/25,434,989.25 = 25,434,989.25/x
3. Step 3: Cross multiply
   12,215,112.75x = 25,434,989.25 × 25,434,989.25
4. Step 4: Simplify right side
   12,215,112.75x = 646,938,678,147,615.50
5. Step 5: Solve for x
   x = 646,938,678,147,615.50/12,215,112.75
6. Step 6: Final answer
   x = 52,962,153.64