Finding the Third Proportional to 13,130 and 20,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,130 : 20,789.50 = 20,789.50 : x
2. Step 2: Convert to fraction form
   13,130/20,789.50 = 20,789.50/x
3. Step 3: Cross multiply
   13,130x = 20,789.50 × 20,789.50
4. Step 4: Simplify right side
   13,130x = 432,203,310.25
5. Step 5: Solve for x
   x = 432,203,310.25/13,130
6. Step 6: Final answer
   x = 32,917.24