Finding the Third Proportional to 1,573.09 and 2,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.09 : 2,128.82 = 2,128.82 : x
2. Step 2: Convert to fraction form
   1,573.09/2,128.82 = 2,128.82/x
3. Step 3: Cross multiply
   1,573.09x = 2,128.82 × 2,128.82
4. Step 4: Simplify right side
   1,573.09x = 4,531,878.00
5. Step 5: Solve for x
   x = 4,531,878.00/1,573.09
6. Step 6: Final answer
   x = 2,880.87