Finding the Third Proportional to 147,945 and 240,360

Step by Step Solution

1. Step 1: Write the proportion equation
   147,945 : 240,360 = 240,360 : x
2. Step 2: Convert to fraction form
   147,945/240,360 = 240,360/x
3. Step 3: Cross multiply
   147,945x = 240,360 × 240,360
4. Step 4: Simplify right side
   147,945x = 57,772,929,600
5. Step 5: Solve for x
   x = 57,772,929,600/147,945
6. Step 6: Final answer
   x = 390,502.75