Finding the Third Proportional to 11,161.13 and 14,812.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,161.13 : 14,812.88 = 14,812.88 : x
2. Step 2: Convert to fraction form
   11,161.13/14,812.88 = 14,812.88/x
3. Step 3: Cross multiply
   11,161.13x = 14,812.88 × 14,812.88
4. Step 4: Simplify right side
   11,161.13x = 219,421,265.77
5. Step 5: Solve for x
   x = 219,421,265.77/11,161.13
6. Step 6: Final answer
   x = 19,659.42