Finding the Third Proportional to 13,554 and 21,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,554 : 21,289.50 = 21,289.50 : x
2. Step 2: Convert to fraction form
   13,554/21,289.50 = 21,289.50/x
3. Step 3: Cross multiply
   13,554x = 21,289.50 × 21,289.50
4. Step 4: Simplify right side
   13,554x = 453,242,810.25
5. Step 5: Solve for x
   x = 453,242,810.25/13,554
6. Step 6: Final answer
   x = 33,439.78