Finding the Third Proportional to 26,858 and 58,900

Step by Step Solution

1. Step 1: Write the proportion equation
   26,858 : 58,900 = 58,900 : x
2. Step 2: Convert to fraction form
   26,858/58,900 = 58,900/x
3. Step 3: Cross multiply
   26,858x = 58,900 × 58,900
4. Step 4: Simplify right side
   26,858x = 3,469,210,000
5. Step 5: Solve for x
   x = 3,469,210,000/26,858
6. Step 6: Final answer
   x = 129,168.59