Finding the Third Proportional to 143,706 and 302,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,706 : 302,298.50 = 302,298.50 : x
2. Step 2: Convert to fraction form
   143,706/302,298.50 = 302,298.50/x
3. Step 3: Cross multiply
   143,706x = 302,298.50 × 302,298.50
4. Step 4: Simplify right side
   143,706x = 91,384,383,102.25
5. Step 5: Solve for x
   x = 91,384,383,102.25/143,706
6. Step 6: Final answer
   x = 635,912.09