Finding the Third Proportional to 59,287,262 and 128,469,781

Step by Step Solution

1. Step 1: Write the proportion equation
   59,287,262 : 128,469,781 = 128,469,781 : x
2. Step 2: Convert to fraction form
   59,287,262/128,469,781 = 128,469,781/x
3. Step 3: Cross multiply
   59,287,262x = 128,469,781 × 128,469,781
4. Step 4: Simplify right side
   59,287,262x = 16,504,484,630,187,960
5. Step 5: Solve for x
   x = 16,504,484,630,187,960/59,287,262
6. Step 6: Final answer
   x = 278,381,629.94