Finding the Third Proportional to 5,350.50 and 12,889.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,350.50 : 12,889.88 = 12,889.88 : x
2. Step 2: Convert to fraction form
   5,350.50/12,889.88 = 12,889.88/x
3. Step 3: Cross multiply
   5,350.50x = 12,889.88 × 12,889.88
4. Step 4: Simplify right side
   5,350.50x = 166,148,877.52
5. Step 5: Solve for x
   x = 166,148,877.52/5,350.50
6. Step 6: Final answer
   x = 31,052.96