Finding the Third Proportional to 60,229.50 and 128,796

Step by Step Solution

1. Step 1: Write the proportion equation
   60,229.50 : 128,796 = 128,796 : x
2. Step 2: Convert to fraction form
   60,229.50/128,796 = 128,796/x
3. Step 3: Cross multiply
   60,229.50x = 128,796 × 128,796
4. Step 4: Simplify right side
   60,229.50x = 16,588,409,616
5. Step 5: Solve for x
   x = 16,588,409,616/60,229.50
6. Step 6: Final answer
   x = 275,420.01