Finding the Third Proportional to 598.59 and 1,308.09

Step by Step Solution

1. Step 1: Write the proportion equation
   598.59 : 1,308.09 = 1,308.09 : x
2. Step 2: Convert to fraction form
   598.59/1,308.09 = 1,308.09/x
3. Step 3: Cross multiply
   598.59x = 1,308.09 × 1,308.09
4. Step 4: Simplify right side
   598.59x = 1,711,109.26
5. Step 5: Solve for x
   x = 1,711,109.26/598.59
6. Step 6: Final answer
   x = 2,858.55