Finding the Third Proportional to 1,225.76 and 2,682.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.76 : 2,682.18 = 2,682.18 : x
2. Step 2: Convert to fraction form
   1,225.76/2,682.18 = 2,682.18/x
3. Step 3: Cross multiply
   1,225.76x = 2,682.18 × 2,682.18
4. Step 4: Simplify right side
   1,225.76x = 7,194,066.92
5. Step 5: Solve for x
   x = 7,194,066.92/1,225.76
6. Step 6: Final answer
   x = 5,869.08