Finding the Third Proportional to 1,427.63 and 2,171.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.63 : 2,171.81 = 2,171.81 : x
2. Step 2: Convert to fraction form
   1,427.63/2,171.81 = 2,171.81/x
3. Step 3: Cross multiply
   1,427.63x = 2,171.81 × 2,171.81
4. Step 4: Simplify right side
   1,427.63x = 4,716,769.54
5. Step 5: Solve for x
   x = 4,716,769.54/1,427.63
6. Step 6: Final answer
   x = 3,303.93