Finding the Third Proportional to 7,078,786 and 10,931,116

Step by Step Solution

1. Step 1: Write the proportion equation
   7,078,786 : 10,931,116 = 10,931,116 : x
2. Step 2: Convert to fraction form
   7,078,786/10,931,116 = 10,931,116/x
3. Step 3: Cross multiply
   7,078,786x = 10,931,116 × 10,931,116
4. Step 4: Simplify right side
   7,078,786x = 119,489,297,005,456
5. Step 5: Solve for x
   x = 119,489,297,005,456/7,078,786
6. Step 6: Final answer
   x = 16,879,913.73