Finding the Third Proportional to 7,615.69 and 16,421.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,615.69 : 16,421.06 = 16,421.06 : x
2. Step 2: Convert to fraction form
   7,615.69/16,421.06 = 16,421.06/x
3. Step 3: Cross multiply
   7,615.69x = 16,421.06 × 16,421.06
4. Step 4: Simplify right side
   7,615.69x = 269,651,293.63
5. Step 5: Solve for x
   x = 269,651,293.63/7,615.69
6. Step 6: Final answer
   x = 35,407.35