Finding the Third Proportional to 59,961.94 and 128,999.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,961.94 : 128,999.25 = 128,999.25 : x
2. Step 2: Convert to fraction form
   59,961.94/128,999.25 = 128,999.25/x
3. Step 3: Cross multiply
   59,961.94x = 128,999.25 × 128,999.25
4. Step 4: Simplify right side
   59,961.94x = 16,640,806,500.56
5. Step 5: Solve for x
   x = 16,640,806,500.56/59,961.94
6. Step 6: Final answer
   x = 277,522.83