Finding the Third Proportional to 140,826 and 300,156

Step by Step Solution

1. Step 1: Write the proportion equation
   140,826 : 300,156 = 300,156 : x
2. Step 2: Convert to fraction form
   140,826/300,156 = 300,156/x
3. Step 3: Cross multiply
   140,826x = 300,156 × 300,156
4. Step 4: Simplify right side
   140,826x = 90,093,624,336
5. Step 5: Solve for x
   x = 90,093,624,336/140,826
6. Step 6: Final answer
   x = 639,751.36