Finding the Third Proportional to 7,017,965 and 10,578,789

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017,965 : 10,578,789 = 10,578,789 : x
2. Step 2: Convert to fraction form
   7,017,965/10,578,789 = 10,578,789/x
3. Step 3: Cross multiply
   7,017,965x = 10,578,789 × 10,578,789
4. Step 4: Simplify right side
   7,017,965x = 111,910,776,706,521
5. Step 5: Solve for x
   x = 111,910,776,706,521/7,017,965
6. Step 6: Final answer
   x = 15,946,328.70