Finding the Third Proportional to 155,421 and 244,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,421 : 244,165.50 = 244,165.50 : x
2. Step 2: Convert to fraction form
   155,421/244,165.50 = 244,165.50/x
3. Step 3: Cross multiply
   155,421x = 244,165.50 × 244,165.50
4. Step 4: Simplify right side
   155,421x = 59,616,791,390.25
5. Step 5: Solve for x
   x = 59,616,791,390.25/155,421
6. Step 6: Final answer
   x = 383,582.60