Finding the Third Proportional to 2,922.50 and 6,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,922.50 : 6,380.50 = 6,380.50 : x
2. Step 2: Convert to fraction form
   2,922.50/6,380.50 = 6,380.50/x
3. Step 3: Cross multiply
   2,922.50x = 6,380.50 × 6,380.50
4. Step 4: Simplify right side
   2,922.50x = 40,710,780.25
5. Step 5: Solve for x
   x = 40,710,780.25/2,922.50
6. Step 6: Final answer
   x = 13,930.12