Finding the Third Proportional to 147,609.75 and 234,990

Step by Step Solution

1. Step 1: Write the proportion equation
   147,609.75 : 234,990 = 234,990 : x
2. Step 2: Convert to fraction form
   147,609.75/234,990 = 234,990/x
3. Step 3: Cross multiply
   147,609.75x = 234,990 × 234,990
4. Step 4: Simplify right side
   147,609.75x = 55,220,300,100
5. Step 5: Solve for x
   x = 55,220,300,100/147,609.75
6. Step 6: Final answer
   x = 374,096.56