Finding the Third Proportional to 11,112.19 and 15,433.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,112.19 : 15,433.03 = 15,433.03 : x
2. Step 2: Convert to fraction form
   11,112.19/15,433.03 = 15,433.03/x
3. Step 3: Cross multiply
   11,112.19x = 15,433.03 × 15,433.03
4. Step 4: Simplify right side
   11,112.19x = 238,178,453.56
5. Step 5: Solve for x
   x = 238,178,453.56/11,112.19
6. Step 6: Final answer
   x = 21,433.98