Finding the Third Proportional to 1,691.51 and 2,229.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691.51 : 2,229.71 = 2,229.71 : x
2. Step 2: Convert to fraction form
   1,691.51/2,229.71 = 2,229.71/x
3. Step 3: Cross multiply
   1,691.51x = 2,229.71 × 2,229.71
4. Step 4: Simplify right side
   1,691.51x = 4,971,628.28
5. Step 5: Solve for x
   x = 4,971,628.28/1,691.51
6. Step 6: Final answer
   x = 2,939.17