Finding the Third Proportional to 155,763 and 221,676.75

Step by Step Solution

1. Step 1: Write the proportion equation
   155,763 : 221,676.75 = 221,676.75 : x
2. Step 2: Convert to fraction form
   155,763/221,676.75 = 221,676.75/x
3. Step 3: Cross multiply
   155,763x = 221,676.75 × 221,676.75
4. Step 4: Simplify right side
   155,763x = 49,140,581,490.56
5. Step 5: Solve for x
   x = 49,140,581,490.56/155,763
6. Step 6: Final answer
   x = 315,483.02