Finding the Third Proportional to 59,920,735.50 and 128,942,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,920,735.50 : 128,942,383.50 = 128,942,383.50 : x
2. Step 2: Convert to fraction form
   59,920,735.50/128,942,383.50 = 128,942,383.50/x
3. Step 3: Cross multiply
   59,920,735.50x = 128,942,383.50 × 128,942,383.50
4. Step 4: Simplify right side
   59,920,735.50x = 16,626,138,262,661,072
5. Step 5: Solve for x
   x = 16,626,138,262,661,072/59,920,735.50
6. Step 6: Final answer
   x = 277,468,861.55