Finding the Third Proportional to 139,650 and 298,982.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,650 : 298,982.25 = 298,982.25 : x
2. Step 2: Convert to fraction form
   139,650/298,982.25 = 298,982.25/x
3. Step 3: Cross multiply
   139,650x = 298,982.25 × 298,982.25
4. Step 4: Simplify right side
   139,650x = 89,390,385,815.06
5. Step 5: Solve for x
   x = 89,390,385,815.06/139,650
6. Step 6: Final answer
   x = 640,103.01