Finding the Third Proportional to 3,874.50 and 7,977.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,874.50 : 7,977.94 = 7,977.94 : x
2. Step 2: Convert to fraction form
   3,874.50/7,977.94 = 7,977.94/x
3. Step 3: Cross multiply
   3,874.50x = 7,977.94 × 7,977.94
4. Step 4: Simplify right side
   3,874.50x = 63,647,486.75
5. Step 5: Solve for x
   x = 63,647,486.75/3,874.50
6. Step 6: Final answer
   x = 16,427.28