Finding the Third Proportional to 143,161 and 305,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,161 : 305,280.50 = 305,280.50 : x
2. Step 2: Convert to fraction form
   143,161/305,280.50 = 305,280.50/x
3. Step 3: Cross multiply
   143,161x = 305,280.50 × 305,280.50
4. Step 4: Simplify right side
   143,161x = 93,196,183,680.25
5. Step 5: Solve for x
   x = 93,196,183,680.25/143,161
6. Step 6: Final answer
   x = 650,988.63