Finding the Third Proportional to 144,711 and 300,334.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,711 : 300,334.50 = 300,334.50 : x
2. Step 2: Convert to fraction form
   144,711/300,334.50 = 300,334.50/x
3. Step 3: Cross multiply
   144,711x = 300,334.50 × 300,334.50
4. Step 4: Simplify right side
   144,711x = 90,200,811,890.25
5. Step 5: Solve for x
   x = 90,200,811,890.25/144,711
6. Step 6: Final answer
   x = 623,316.90