Finding the Third Proportional to 5,580.75 and 13,151.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,580.75 : 13,151.25 = 13,151.25 : x
2. Step 2: Convert to fraction form
   5,580.75/13,151.25 = 13,151.25/x
3. Step 3: Cross multiply
   5,580.75x = 13,151.25 × 13,151.25
4. Step 4: Simplify right side
   5,580.75x = 172,955,376.56
5. Step 5: Solve for x
   x = 172,955,376.56/5,580.75
6. Step 6: Final answer
   x = 30,991.42