Finding the Third Proportional to 13,749.75 and 21,186.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,749.75 : 21,186.56 = 21,186.56 : x
2. Step 2: Convert to fraction form
   13,749.75/21,186.56 = 21,186.56/x
3. Step 3: Cross multiply
   13,749.75x = 21,186.56 × 21,186.56
4. Step 4: Simplify right side
   13,749.75x = 448,870,430.57
5. Step 5: Solve for x
   x = 448,870,430.57/13,749.75
6. Step 6: Final answer
   x = 32,645.72