Finding the Third Proportional to 1,870.59 and 3,957.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.59 : 3,957.47 = 3,957.47 : x
2. Step 2: Convert to fraction form
   1,870.59/3,957.47 = 3,957.47/x
3. Step 3: Cross multiply
   1,870.59x = 3,957.47 × 3,957.47
4. Step 4: Simplify right side
   1,870.59x = 15,661,558.91
5. Step 5: Solve for x
   x = 15,661,558.91/1,870.59
6. Step 6: Final answer
   x = 8,372.51