Finding the Third Proportional to 2,487.38 and 3,387.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.38 : 3,387.94 = 3,387.94 : x
2. Step 2: Convert to fraction form
   2,487.38/3,387.94 = 3,387.94/x
3. Step 3: Cross multiply
   2,487.38x = 3,387.94 × 3,387.94
4. Step 4: Simplify right side
   2,487.38x = 11,478,120.50
5. Step 5: Solve for x
   x = 11,478,120.50/2,487.38
6. Step 6: Final answer
   x = 4,614.55