Finding the Third Proportional to 12,139,448 and 25,401,190

Step by Step Solution

1. Step 1: Write the proportion equation
   12,139,448 : 25,401,190 = 25,401,190 : x
2. Step 2: Convert to fraction form
   12,139,448/25,401,190 = 25,401,190/x
3. Step 3: Cross multiply
   12,139,448x = 25,401,190 × 25,401,190
4. Step 4: Simplify right side
   12,139,448x = 645,220,453,416,100
5. Step 5: Solve for x
   x = 645,220,453,416,100/12,139,448
6. Step 6: Final answer
   x = 53,150,724.27