Finding the Third Proportional to 7,017,963 and 10,578,786

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017,963 : 10,578,786 = 10,578,786 : x
2. Step 2: Convert to fraction form
   7,017,963/10,578,786 = 10,578,786/x
3. Step 3: Cross multiply
   7,017,963x = 10,578,786 × 10,578,786
4. Step 4: Simplify right side
   7,017,963x = 111,910,713,233,796
5. Step 5: Solve for x
   x = 111,910,713,233,796/7,017,963
6. Step 6: Final answer
   x = 15,946,324.20