Finding the Third Proportional to 11,923,860 and 25,864,128

Step by Step Solution

1. Step 1: Write the proportion equation
   11,923,860 : 25,864,128 = 25,864,128 : x
2. Step 2: Convert to fraction form
   11,923,860/25,864,128 = 25,864,128/x
3. Step 3: Cross multiply
   11,923,860x = 25,864,128 × 25,864,128
4. Step 4: Simplify right side
   11,923,860x = 668,953,117,200,384
5. Step 5: Solve for x
   x = 668,953,117,200,384/11,923,860
6. Step 6: Final answer
   x = 56,102,060.68