Finding the Third Proportional to 3,514.50 and 7,421.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,514.50 : 7,421.06 = 7,421.06 : x
2. Step 2: Convert to fraction form
   3,514.50/7,421.06 = 7,421.06/x
3. Step 3: Cross multiply
   3,514.50x = 7,421.06 × 7,421.06
4. Step 4: Simplify right side
   3,514.50x = 55,072,168.63
5. Step 5: Solve for x
   x = 55,072,168.63/3,514.50
6. Step 6: Final answer
   x = 15,669.99