Finding the Third Proportional to 67,300 and 142,798

Step by Step Solution

1. Step 1: Write the proportion equation
   67,300 : 142,798 = 142,798 : x
2. Step 2: Convert to fraction form
   67,300/142,798 = 142,798/x
3. Step 3: Cross multiply
   67,300x = 142,798 × 142,798
4. Step 4: Simplify right side
   67,300x = 20,391,268,804
5. Step 5: Solve for x
   x = 20,391,268,804/67,300
6. Step 6: Final answer
   x = 302,990.62