Finding the Third Proportional to 14,605.31 and 21,429.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,605.31 : 21,429.56 = 21,429.56 : x
2. Step 2: Convert to fraction form
   14,605.31/21,429.56 = 21,429.56/x
3. Step 3: Cross multiply
   14,605.31x = 21,429.56 × 21,429.56
4. Step 4: Simplify right side
   14,605.31x = 459,226,148.94
5. Step 5: Solve for x
   x = 459,226,148.94/14,605.31
6. Step 6: Final answer
   x = 31,442.40