Finding the Third Proportional to 10,640,320 and 16,509,404

Step by Step Solution

1. Step 1: Write the proportion equation
   10,640,320 : 16,509,404 = 16,509,404 : x
2. Step 2: Convert to fraction form
   10,640,320/16,509,404 = 16,509,404/x
3. Step 3: Cross multiply
   10,640,320x = 16,509,404 × 16,509,404
4. Step 4: Simplify right side
   10,640,320x = 272,560,420,435,216
5. Step 5: Solve for x
   x = 272,560,420,435,216/10,640,320
6. Step 6: Final answer
   x = 25,615,810.47