Finding the Third Proportional to 143,030 and 308,550

Step by Step Solution

1. Step 1: Write the proportion equation
   143,030 : 308,550 = 308,550 : x
2. Step 2: Convert to fraction form
   143,030/308,550 = 308,550/x
3. Step 3: Cross multiply
   143,030x = 308,550 × 308,550
4. Step 4: Simplify right side
   143,030x = 95,203,102,500
5. Step 5: Solve for x
   x = 95,203,102,500/143,030
6. Step 6: Final answer
   x = 665,616.32