Finding the Third Proportional to 1,421.34 and 3,073.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.34 : 3,073.88 = 3,073.88 : x
2. Step 2: Convert to fraction form
   1,421.34/3,073.88 = 3,073.88/x
3. Step 3: Cross multiply
   1,421.34x = 3,073.88 × 3,073.88
4. Step 4: Simplify right side
   1,421.34x = 9,448,707.52
5. Step 5: Solve for x
   x = 9,448,707.52/1,421.34
6. Step 6: Final answer
   x = 6,647.73