Finding the Third Proportional to 64,684 and 139,573

Step by Step Solution

1. Step 1: Write the proportion equation
   64,684 : 139,573 = 139,573 : x
2. Step 2: Convert to fraction form
   64,684/139,573 = 139,573/x
3. Step 3: Cross multiply
   64,684x = 139,573 × 139,573
4. Step 4: Simplify right side
   64,684x = 19,480,622,329
5. Step 5: Solve for x
   x = 19,480,622,329/64,684
6. Step 6: Final answer
   x = 301,166.01