Finding the Third Proportional to 2,491.03 and 3,688.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.03 : 3,688.45 = 3,688.45 : x
2. Step 2: Convert to fraction form
   2,491.03/3,688.45 = 3,688.45/x
3. Step 3: Cross multiply
   2,491.03x = 3,688.45 × 3,688.45
4. Step 4: Simplify right side
   2,491.03x = 13,604,686.46
5. Step 5: Solve for x
   x = 13,604,686.46/2,491.03
6. Step 6: Final answer
   x = 5,461.47