Finding the Third Proportional to 8,440.45 and 13,070.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,440.45 : 13,070.74 = 13,070.74 : x
2. Step 2: Convert to fraction form
   8,440.45/13,070.74 = 13,070.74/x
3. Step 3: Cross multiply
   8,440.45x = 13,070.74 × 13,070.74
4. Step 4: Simplify right side
   8,440.45x = 170,844,301.33
5. Step 5: Solve for x
   x = 170,844,301.33/8,440.45
6. Step 6: Final answer
   x = 20,241.13