Finding the Third Proportional to 155,540 and 341,212

Step by Step Solution

1. Step 1: Write the proportion equation
   155,540 : 341,212 = 341,212 : x
2. Step 2: Convert to fraction form
   155,540/341,212 = 341,212/x
3. Step 3: Cross multiply
   155,540x = 341,212 × 341,212
4. Step 4: Simplify right side
   155,540x = 116,425,628,944
5. Step 5: Solve for x
   x = 116,425,628,944/155,540
6. Step 6: Final answer
   x = 748,525.32