Finding the Third Proportional to 11,831,408 and 25,456,128

Step by Step Solution

1. Step 1: Write the proportion equation
   11,831,408 : 25,456,128 = 25,456,128 : x
2. Step 2: Convert to fraction form
   11,831,408/25,456,128 = 25,456,128/x
3. Step 3: Cross multiply
   11,831,408x = 25,456,128 × 25,456,128
4. Step 4: Simplify right side
   11,831,408x = 648,014,452,752,384
5. Step 5: Solve for x
   x = 648,014,452,752,384/11,831,408
6. Step 6: Final answer
   x = 54,770,696.16