Finding the Third Proportional to 8,920.13 and 13,613.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,920.13 : 13,613.06 = 13,613.06 : x
2. Step 2: Convert to fraction form
   8,920.13/13,613.06 = 13,613.06/x
3. Step 3: Cross multiply
   8,920.13x = 13,613.06 × 13,613.06
4. Step 4: Simplify right side
   8,920.13x = 185,315,470.63
5. Step 5: Solve for x
   x = 185,315,470.63/8,920.13
6. Step 6: Final answer
   x = 20,774.99