Finding the Third Proportional to 12,768,251 and 17,916,384

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768,251 : 17,916,384 = 17,916,384 : x
2. Step 2: Convert to fraction form
   12,768,251/17,916,384 = 17,916,384/x
3. Step 3: Cross multiply
   12,768,251x = 17,916,384 × 17,916,384
4. Step 4: Simplify right side
   12,768,251x = 320,996,815,635,456
5. Step 5: Solve for x
   x = 320,996,815,635,456/12,768,251
6. Step 6: Final answer
   x = 25,140,233.82