Finding the Third Proportional to 1,722.09 and 2,651.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.09 : 2,651.91 = 2,651.91 : x
2. Step 2: Convert to fraction form
   1,722.09/2,651.91 = 2,651.91/x
3. Step 3: Cross multiply
   1,722.09x = 2,651.91 × 2,651.91
4. Step 4: Simplify right side
   1,722.09x = 7,032,606.76
5. Step 5: Solve for x
   x = 7,032,606.76/1,722.09
6. Step 6: Final answer
   x = 4,083.75