Finding the Third Proportional to 3,953,768 and 8,677,360

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,768 : 8,677,360 = 8,677,360 : x
2. Step 2: Convert to fraction form
   3,953,768/8,677,360 = 8,677,360/x
3. Step 3: Cross multiply
   3,953,768x = 8,677,360 × 8,677,360
4. Step 4: Simplify right side
   3,953,768x = 75,296,576,569,600
5. Step 5: Solve for x
   x = 75,296,576,569,600/3,953,768
6. Step 6: Final answer
   x = 19,044,257.67