Finding the Third Proportional to 2,736.91 and 4,222.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.91 : 4,222.76 = 4,222.76 : x
2. Step 2: Convert to fraction form
   2,736.91/4,222.76 = 4,222.76/x
3. Step 3: Cross multiply
   2,736.91x = 4,222.76 × 4,222.76
4. Step 4: Simplify right side
   2,736.91x = 17,831,683.54
5. Step 5: Solve for x
   x = 17,831,683.54/2,736.91
6. Step 6: Final answer
   x = 6,515.25