Finding the Third Proportional to 155,548 and 333,128

Step by Step Solution

1. Step 1: Write the proportion equation
   155,548 : 333,128 = 333,128 : x
2. Step 2: Convert to fraction form
   155,548/333,128 = 333,128/x
3. Step 3: Cross multiply
   155,548x = 333,128 × 333,128
4. Step 4: Simplify right side
   155,548x = 110,974,264,384
5. Step 5: Solve for x
   x = 110,974,264,384/155,548
6. Step 6: Final answer
   x = 713,440.64