Finding the Third Proportional to 8,964,866 and 13,456,479

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964,866 : 13,456,479 = 13,456,479 : x
2. Step 2: Convert to fraction form
   8,964,866/13,456,479 = 13,456,479/x
3. Step 3: Cross multiply
   8,964,866x = 13,456,479 × 13,456,479
4. Step 4: Simplify right side
   8,964,866x = 181,076,827,077,441
5. Step 5: Solve for x
   x = 181,076,827,077,441/8,964,866
6. Step 6: Final answer
   x = 20,198,497.90