Finding the Third Proportional to 26,668.50 and 42,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,668.50 : 42,958.50 = 42,958.50 : x
2. Step 2: Convert to fraction form
   26,668.50/42,958.50 = 42,958.50/x
3. Step 3: Cross multiply
   26,668.50x = 42,958.50 × 42,958.50
4. Step 4: Simplify right side
   26,668.50x = 1,845,432,722.25
5. Step 5: Solve for x
   x = 1,845,432,722.25/26,668.50
6. Step 6: Final answer
   x = 69,198.97