Finding the Third Proportional to 4,525,266 and 9,758,640

Step by Step Solution

1. Step 1: Write the proportion equation
   4,525,266 : 9,758,640 = 9,758,640 : x
2. Step 2: Convert to fraction form
   4,525,266/9,758,640 = 9,758,640/x
3. Step 3: Cross multiply
   4,525,266x = 9,758,640 × 9,758,640
4. Step 4: Simplify right side
   4,525,266x = 95,231,054,649,600
5. Step 5: Solve for x
   x = 95,231,054,649,600/4,525,266
6. Step 6: Final answer
   x = 21,044,299.86