Finding the Third Proportional to 144,689 and 300,466

Step by Step Solution

1. Step 1: Write the proportion equation
   144,689 : 300,466 = 300,466 : x
2. Step 2: Convert to fraction form
   144,689/300,466 = 300,466/x
3. Step 3: Cross multiply
   144,689x = 300,466 × 300,466
4. Step 4: Simplify right side
   144,689x = 90,279,817,156
5. Step 5: Solve for x
   x = 90,279,817,156/144,689
6. Step 6: Final answer
   x = 623,957.71