Finding the Third Proportional to 26,880 and 42,010

Step by Step Solution

1. Step 1: Write the proportion equation
   26,880 : 42,010 = 42,010 : x
2. Step 2: Convert to fraction form
   26,880/42,010 = 42,010/x
3. Step 3: Cross multiply
   26,880x = 42,010 × 42,010
4. Step 4: Simplify right side
   26,880x = 1,764,840,100
5. Step 5: Solve for x
   x = 1,764,840,100/26,880
6. Step 6: Final answer
   x = 65,656.25