Finding the Third Proportional to 155,392 and 333,440

Step by Step Solution

1. Step 1: Write the proportion equation
   155,392 : 333,440 = 333,440 : x
2. Step 2: Convert to fraction form
   155,392/333,440 = 333,440/x
3. Step 3: Cross multiply
   155,392x = 333,440 × 333,440
4. Step 4: Simplify right side
   155,392x = 111,182,233,600
5. Step 5: Solve for x
   x = 111,182,233,600/155,392
6. Step 6: Final answer
   x = 715,495.22