Finding the Third Proportional to 11,527.31 and 14,921.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,527.31 : 14,921.72 = 14,921.72 : x
2. Step 2: Convert to fraction form
   11,527.31/14,921.72 = 14,921.72/x
3. Step 3: Cross multiply
   11,527.31x = 14,921.72 × 14,921.72
4. Step 4: Simplify right side
   11,527.31x = 222,657,690.45
5. Step 5: Solve for x
   x = 222,657,690.45/11,527.31
6. Step 6: Final answer
   x = 19,315.66