Finding the Third Proportional to 7,691.63 and 10,998.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,691.63 : 10,998.56 = 10,998.56 : x
2. Step 2: Convert to fraction form
   7,691.63/10,998.56 = 10,998.56/x
3. Step 3: Cross multiply
   7,691.63x = 10,998.56 × 10,998.56
4. Step 4: Simplify right side
   7,691.63x = 120,968,377.07
5. Step 5: Solve for x
   x = 120,968,377.07/7,691.63
6. Step 6: Final answer
   x = 15,727.28