Finding the Third Proportional to 12,142,144 and 25,857,368

Step by Step Solution

1. Step 1: Write the proportion equation
   12,142,144 : 25,857,368 = 25,857,368 : x
2. Step 2: Convert to fraction form
   12,142,144/25,857,368 = 25,857,368/x
3. Step 3: Cross multiply
   12,142,144x = 25,857,368 × 25,857,368
4. Step 4: Simplify right side
   12,142,144x = 668,603,479,887,424
5. Step 5: Solve for x
   x = 668,603,479,887,424/12,142,144
6. Step 6: Final answer
   x = 55,064,696.97