Finding the Third Proportional to 139,650.75 and 298,983

Step by Step Solution

1. Step 1: Write the proportion equation
   139,650.75 : 298,983 = 298,983 : x
2. Step 2: Convert to fraction form
   139,650.75/298,983 = 298,983/x
3. Step 3: Cross multiply
   139,650.75x = 298,983 × 298,983
4. Step 4: Simplify right side
   139,650.75x = 89,390,834,289
5. Step 5: Solve for x
   x = 89,390,834,289/139,650.75
6. Step 6: Final answer
   x = 640,102.79