Finding the Third Proportional to 12,142,164 and 25,857,399

Step by Step Solution

1. Step 1: Write the proportion equation
   12,142,164 : 25,857,399 = 25,857,399 : x
2. Step 2: Convert to fraction form
   12,142,164/25,857,399 = 25,857,399/x
3. Step 3: Cross multiply
   12,142,164x = 25,857,399 × 25,857,399
4. Step 4: Simplify right side
   12,142,164x = 668,605,083,045,201
5. Step 5: Solve for x
   x = 668,605,083,045,201/12,142,164
6. Step 6: Final answer
   x = 55,064,738.30