Finding the Third Proportional to 5,616.19 and 8,697.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,616.19 : 8,697.94 = 8,697.94 : x
2. Step 2: Convert to fraction form
   5,616.19/8,697.94 = 8,697.94/x
3. Step 3: Cross multiply
   5,616.19x = 8,697.94 × 8,697.94
4. Step 4: Simplify right side
   5,616.19x = 75,654,116.75
5. Step 5: Solve for x
   x = 75,654,116.75/5,616.19
6. Step 6: Final answer
   x = 13,470.72