Finding the Third Proportional to 1,434.25 and 2,179.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.25 : 2,179.88 = 2,179.88 : x
2. Step 2: Convert to fraction form
   1,434.25/2,179.88 = 2,179.88/x
3. Step 3: Cross multiply
   1,434.25x = 2,179.88 × 2,179.88
4. Step 4: Simplify right side
   1,434.25x = 4,751,855.02
5. Step 5: Solve for x
   x = 4,751,855.02/1,434.25
6. Step 6: Final answer
   x = 3,313.13