Finding the Third Proportional to 144,687.75 and 300,463.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,687.75 : 300,463.50 = 300,463.50 : x
2. Step 2: Convert to fraction form
   144,687.75/300,463.50 = 300,463.50/x
3. Step 3: Cross multiply
   144,687.75x = 300,463.50 × 300,463.50
4. Step 4: Simplify right side
   144,687.75x = 90,278,314,832.25
5. Step 5: Solve for x
   x = 90,278,314,832.25/144,687.75
6. Step 6: Final answer
   x = 623,952.72