Finding the Third Proportional to 64,483 and 142,042

Step by Step Solution

1. Step 1: Write the proportion equation
   64,483 : 142,042 = 142,042 : x
2. Step 2: Convert to fraction form
   64,483/142,042 = 142,042/x
3. Step 3: Cross multiply
   64,483x = 142,042 × 142,042
4. Step 4: Simplify right side
   64,483x = 20,175,929,764
5. Step 5: Solve for x
   x = 20,175,929,764/64,483
6. Step 6: Final answer
   x = 312,887.58