Finding the Third Proportional to 8,445 and 13,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,445 : 13,054.50 = 13,054.50 : x
2. Step 2: Convert to fraction form
   8,445/13,054.50 = 13,054.50/x
3. Step 3: Cross multiply
   8,445x = 13,054.50 × 13,054.50
4. Step 4: Simplify right side
   8,445x = 170,419,970.25
5. Step 5: Solve for x
   x = 170,419,970.25/8,445
6. Step 6: Final answer
   x = 20,179.98