Finding the Third Proportional to 63,734 and 139,745

Step by Step Solution

1. Step 1: Write the proportion equation
   63,734 : 139,745 = 139,745 : x
2. Step 2: Convert to fraction form
   63,734/139,745 = 139,745/x
3. Step 3: Cross multiply
   63,734x = 139,745 × 139,745
4. Step 4: Simplify right side
   63,734x = 19,528,665,025
5. Step 5: Solve for x
   x = 19,528,665,025/63,734
6. Step 6: Final answer
   x = 306,408.90