Finding the Third Proportional to 5,541.75 and 10,931.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,541.75 : 10,931.63 = 10,931.63 : x
2. Step 2: Convert to fraction form
   5,541.75/10,931.63 = 10,931.63/x
3. Step 3: Cross multiply
   5,541.75x = 10,931.63 × 10,931.63
4. Step 4: Simplify right side
   5,541.75x = 119,500,425.14
5. Step 5: Solve for x
   x = 119,500,425.14/5,541.75
6. Step 6: Final answer
   x = 21,563.66