Finding the Third Proportional to 155,745 and 243,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,745 : 243,988.50 = 243,988.50 : x
2. Step 2: Convert to fraction form
   155,745/243,988.50 = 243,988.50/x
3. Step 3: Cross multiply
   155,745x = 243,988.50 × 243,988.50
4. Step 4: Simplify right side
   155,745x = 59,530,388,132.25
5. Step 5: Solve for x
   x = 59,530,388,132.25/155,745
6. Step 6: Final answer
   x = 382,229.85