Finding the Third Proportional to 5,289.56 and 12,531.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,289.56 : 12,531.94 = 12,531.94 : x
2. Step 2: Convert to fraction form
   5,289.56/12,531.94 = 12,531.94/x
3. Step 3: Cross multiply
   5,289.56x = 12,531.94 × 12,531.94
4. Step 4: Simplify right side
   5,289.56x = 157,049,457.50
5. Step 5: Solve for x
   x = 157,049,457.50/5,289.56
6. Step 6: Final answer
   x = 29,690.44