Finding the Third Proportional to 11,087,879,289 and 16,911,091,274

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087,879,289 : 16,911,091,274 = 16,911,091,274 : x
2. Step 2: Convert to fraction form
   11,087,879,289/16,911,091,274 = 16,911,091,274/x
3. Step 3: Cross multiply
   11,087,879,289x = 16,911,091,274 × 16,911,091,274
4. Step 4: Simplify right side
   11,087,879,289x = 285,985,008,077,558,939,648
5. Step 5: Solve for x
   x = 285,985,008,077,558,939,648/11,087,879,289
6. Step 6: Final answer
   x = 25,792,579,502.67