Finding the Third Proportional to 143,455.50 and 308,862

Step by Step Solution

1. Step 1: Write the proportion equation
   143,455.50 : 308,862 = 308,862 : x
2. Step 2: Convert to fraction form
   143,455.50/308,862 = 308,862/x
3. Step 3: Cross multiply
   143,455.50x = 308,862 × 308,862
4. Step 4: Simplify right side
   143,455.50x = 95,395,735,044
5. Step 5: Solve for x
   x = 95,395,735,044/143,455.50
6. Step 6: Final answer
   x = 664,984.86