Finding the Third Proportional to 13,800.75 and 21,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,800.75 : 21,521.25 = 21,521.25 : x
2. Step 2: Convert to fraction form
   13,800.75/21,521.25 = 21,521.25/x
3. Step 3: Cross multiply
   13,800.75x = 21,521.25 × 21,521.25
4. Step 4: Simplify right side
   13,800.75x = 463,164,201.56
5. Step 5: Solve for x
   x = 463,164,201.56/13,800.75
6. Step 6: Final answer
   x = 33,560.80