Finding the Third Proportional to 295,380 and 445,500

Step by Step Solution

1. Step 1: Write the proportion equation
   295,380 : 445,500 = 445,500 : x
2. Step 2: Convert to fraction form
   295,380/445,500 = 445,500/x
3. Step 3: Cross multiply
   295,380x = 445,500 × 445,500
4. Step 4: Simplify right side
   295,380x = 198,470,250,000
5. Step 5: Solve for x
   x = 198,470,250,000/295,380
6. Step 6: Final answer
   x = 671,914.99