Finding the Third Proportional to 40,789,939,348 and 87,778,605,656

Step by Step Solution

1. Step 1: Write the proportion equation
   40,789,939,348 : 87,778,605,656 = 87,778,605,656 : x
2. Step 2: Convert to fraction form
   40,789,939,348/87,778,605,656 = 87,778,605,656/x
3. Step 3: Cross multiply
   40,789,939,348x = 87,778,605,656 × 87,778,605,656
4. Step 4: Simplify right side
   40,789,939,348x = 7,705,083,610,911,555,452,928
5. Step 5: Solve for x
   x = 7,705,083,610,911,555,452,928/40,789,939,348
6. Step 6: Final answer
   x = 188,896,667,513.42