Finding the Third Proportional to 3,688.76 and 5,561.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688.76 : 5,561.07 = 5,561.07 : x
2. Step 2: Convert to fraction form
   3,688.76/5,561.07 = 5,561.07/x
3. Step 3: Cross multiply
   3,688.76x = 5,561.07 × 5,561.07
4. Step 4: Simplify right side
   3,688.76x = 30,925,524.06
5. Step 5: Solve for x
   x = 30,925,524.06/3,688.76
6. Step 6: Final answer
   x = 8,383.72