Finding the Third Proportional to 155,424 and 240,912

Step by Step Solution

1. Step 1: Write the proportion equation
   155,424 : 240,912 = 240,912 : x
2. Step 2: Convert to fraction form
   155,424/240,912 = 240,912/x
3. Step 3: Cross multiply
   155,424x = 240,912 × 240,912
4. Step 4: Simplify right side
   155,424x = 58,038,591,744
5. Step 5: Solve for x
   x = 58,038,591,744/155,424
6. Step 6: Final answer
   x = 373,421.04