Finding the Third Proportional to 140,229 and 300,384

Step by Step Solution

1. Step 1: Write the proportion equation
   140,229 : 300,384 = 300,384 : x
2. Step 2: Convert to fraction form
   140,229/300,384 = 300,384/x
3. Step 3: Cross multiply
   140,229x = 300,384 × 300,384
4. Step 4: Simplify right side
   140,229x = 90,230,547,456
5. Step 5: Solve for x
   x = 90,230,547,456/140,229
6. Step 6: Final answer
   x = 643,451.41