Finding the Third Proportional to 140,358 and 300,732

Step by Step Solution

1. Step 1: Write the proportion equation
   140,358 : 300,732 = 300,732 : x
2. Step 2: Convert to fraction form
   140,358/300,732 = 300,732/x
3. Step 3: Cross multiply
   140,358x = 300,732 × 300,732
4. Step 4: Simplify right side
   140,358x = 90,439,735,824
5. Step 5: Solve for x
   x = 90,439,735,824/140,358
6. Step 6: Final answer
   x = 644,350.42