Finding the Third Proportional to 5,364.56 and 10,724.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,364.56 : 10,724.06 = 10,724.06 : x
2. Step 2: Convert to fraction form
   5,364.56/10,724.06 = 10,724.06/x
3. Step 3: Cross multiply
   5,364.56x = 10,724.06 × 10,724.06
4. Step 4: Simplify right side
   5,364.56x = 115,005,516.50
5. Step 5: Solve for x
   x = 115,005,516.50/5,364.56
6. Step 6: Final answer
   x = 21,438.00