Finding the Third Proportional to 19,364.06 and 21,429.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,364.06 : 21,429.56 = 21,429.56 : x
2. Step 2: Convert to fraction form
   19,364.06/21,429.56 = 21,429.56/x
3. Step 3: Cross multiply
   19,364.06x = 21,429.56 × 21,429.56
4. Step 4: Simplify right side
   19,364.06x = 459,226,148.94
5. Step 5: Solve for x
   x = 459,226,148.94/19,364.06
6. Step 6: Final answer
   x = 23,715.38