Finding the Third Proportional to 8,964,864 and 13,456,476

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964,864 : 13,456,476 = 13,456,476 : x
2. Step 2: Convert to fraction form
   8,964,864/13,456,476 = 13,456,476/x
3. Step 3: Cross multiply
   8,964,864x = 13,456,476 × 13,456,476
4. Step 4: Simplify right side
   8,964,864x = 181,076,746,338,576
5. Step 5: Solve for x
   x = 181,076,746,338,576/8,964,864
6. Step 6: Final answer
   x = 20,198,493.40