Finding the Third Proportional to 155,418 and 333,488

Step by Step Solution

1. Step 1: Write the proportion equation
   155,418 : 333,488 = 333,488 : x
2. Step 2: Convert to fraction form
   155,418/333,488 = 333,488/x
3. Step 3: Cross multiply
   155,418x = 333,488 × 333,488
4. Step 4: Simplify right side
   155,418x = 111,214,246,144
5. Step 5: Solve for x
   x = 111,214,246,144/155,418
6. Step 6: Final answer
   x = 715,581.50