Finding the Third Proportional to 1,957.61 and 4,107.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,957.61 : 4,107.43 = 4,107.43 : x
2. Step 2: Convert to fraction form
   1,957.61/4,107.43 = 4,107.43/x
3. Step 3: Cross multiply
   1,957.61x = 4,107.43 × 4,107.43
4. Step 4: Simplify right side
   1,957.61x = 16,870,962.59
5. Step 5: Solve for x
   x = 16,870,962.59/1,957.61
6. Step 6: Final answer
   x = 8,618.16