Finding the Third Proportional to 21,516.47 and 35,557.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,516.47 : 35,557.31 = 35,557.31 : x
2. Step 2: Convert to fraction form
   21,516.47/35,557.31 = 35,557.31/x
3. Step 3: Cross multiply
   21,516.47x = 35,557.31 × 35,557.31
4. Step 4: Simplify right side
   21,516.47x = 1,264,322,472.22
5. Step 5: Solve for x
   x = 1,264,322,472.22/21,516.47
6. Step 6: Final answer
   x = 58,760.69