Finding the Third Proportional to 1,128.09 and 2,346.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128.09 : 2,346.47 = 2,346.47 : x
2. Step 2: Convert to fraction form
   1,128.09/2,346.47 = 2,346.47/x
3. Step 3: Cross multiply
   1,128.09x = 2,346.47 × 2,346.47
4. Step 4: Simplify right side
   1,128.09x = 5,505,915.59
5. Step 5: Solve for x
   x = 5,505,915.59/1,128.09
6. Step 6: Final answer
   x = 4,880.73