Finding the Third Proportional to 155,388 and 333,432

Step by Step Solution

1. Step 1: Write the proportion equation
   155,388 : 333,432 = 333,432 : x
2. Step 2: Convert to fraction form
   155,388/333,432 = 333,432/x
3. Step 3: Cross multiply
   155,388x = 333,432 × 333,432
4. Step 4: Simplify right side
   155,388x = 111,176,898,624
5. Step 5: Solve for x
   x = 111,176,898,624/155,388
6. Step 6: Final answer
   x = 715,479.31