Finding the Third Proportional to 59,500.50 and 128,796

Step by Step Solution

1. Step 1: Write the proportion equation
   59,500.50 : 128,796 = 128,796 : x
2. Step 2: Convert to fraction form
   59,500.50/128,796 = 128,796/x
3. Step 3: Cross multiply
   59,500.50x = 128,796 × 128,796
4. Step 4: Simplify right side
   59,500.50x = 16,588,409,616
5. Step 5: Solve for x
   x = 16,588,409,616/59,500.50
6. Step 6: Final answer
   x = 278,794.46