Finding the Third Proportional to 13,800 and 21,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,800 : 21,237.50 = 21,237.50 : x
2. Step 2: Convert to fraction form
   13,800/21,237.50 = 21,237.50/x
3. Step 3: Cross multiply
   13,800x = 21,237.50 × 21,237.50
4. Step 4: Simplify right side
   13,800x = 451,031,406.25
5. Step 5: Solve for x
   x = 451,031,406.25/13,800
6. Step 6: Final answer
   x = 32,683.44