Finding the Third Proportional to 6,091.13 and 8,920.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,091.13 : 8,920.69 = 8,920.69 : x
2. Step 2: Convert to fraction form
   6,091.13/8,920.69 = 8,920.69/x
3. Step 3: Cross multiply
   6,091.13x = 8,920.69 × 8,920.69
4. Step 4: Simplify right side
   6,091.13x = 79,578,665.47
5. Step 5: Solve for x
   x = 79,578,665.47/6,091.13
6. Step 6: Final answer
   x = 13,064.69