Finding the Third Proportional to 10,644.54 and 21,972.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,644.54 : 21,972.52 = 21,972.52 : x
2. Step 2: Convert to fraction form
   10,644.54/21,972.52 = 21,972.52/x
3. Step 3: Cross multiply
   10,644.54x = 21,972.52 × 21,972.52
4. Step 4: Simplify right side
   10,644.54x = 482,791,442.89
5. Step 5: Solve for x
   x = 482,791,442.89/10,644.54
6. Step 6: Final answer
   x = 45,355.79