Finding the Third Proportional to 1,438.07 and 2,381.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.07 : 2,381.35 = 2,381.35 : x
2. Step 2: Convert to fraction form
   1,438.07/2,381.35 = 2,381.35/x
3. Step 3: Cross multiply
   1,438.07x = 2,381.35 × 2,381.35
4. Step 4: Simplify right side
   1,438.07x = 5,670,839.92
5. Step 5: Solve for x
   x = 5,670,839.92/1,438.07
6. Step 6: Final answer
   x = 3,943.38