Finding the Third Proportional to 9,927.56 and 21,429.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,927.56 : 21,429.56 = 21,429.56 : x
2. Step 2: Convert to fraction form
   9,927.56/21,429.56 = 21,429.56/x
3. Step 3: Cross multiply
   9,927.56x = 21,429.56 × 21,429.56
4. Step 4: Simplify right side
   9,927.56x = 459,226,148.94
5. Step 5: Solve for x
   x = 459,226,148.94/9,927.56
6. Step 6: Final answer
   x = 46,257.69