Finding the Third Proportional to 59,850.84 and 128,521.69

Step by Step Solution

1. Step 1: Write the proportion equation
   59,850.84 : 128,521.69 = 128,521.69 : x
2. Step 2: Convert to fraction form
   59,850.84/128,521.69 = 128,521.69/x
3. Step 3: Cross multiply
   59,850.84x = 128,521.69 × 128,521.69
4. Step 4: Simplify right side
   59,850.84x = 16,517,824,157.85
5. Step 5: Solve for x
   x = 16,517,824,157.85/59,850.84
6. Step 6: Final answer
   x = 275,983.15