Finding the Third Proportional to 149,863.50 and 313,581

Step by Step Solution

1. Step 1: Write the proportion equation
   149,863.50 : 313,581 = 313,581 : x
2. Step 2: Convert to fraction form
   149,863.50/313,581 = 313,581/x
3. Step 3: Cross multiply
   149,863.50x = 313,581 × 313,581
4. Step 4: Simplify right side
   149,863.50x = 98,333,043,561
5. Step 5: Solve for x
   x = 98,333,043,561/149,863.50
6. Step 6: Final answer
   x = 656,150.72