Finding the Third Proportional to 13,621.50 and 20,833.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,621.50 : 20,833.88 = 20,833.88 : x
2. Step 2: Convert to fraction form
   13,621.50/20,833.88 = 20,833.88/x
3. Step 3: Cross multiply
   13,621.50x = 20,833.88 × 20,833.88
4. Step 4: Simplify right side
   13,621.50x = 434,050,347.52
5. Step 5: Solve for x
   x = 434,050,347.52/13,621.50
6. Step 6: Final answer
   x = 31,865.09