Finding the Third Proportional to 147,033.50 and 318,956

Step by Step Solution

1. Step 1: Write the proportion equation
   147,033.50 : 318,956 = 318,956 : x
2. Step 2: Convert to fraction form
   147,033.50/318,956 = 318,956/x
3. Step 3: Cross multiply
   147,033.50x = 318,956 × 318,956
4. Step 4: Simplify right side
   147,033.50x = 101,732,929,936
5. Step 5: Solve for x
   x = 101,732,929,936/147,033.50
6. Step 6: Final answer
   x = 691,903.07