Finding the Third Proportional to 7,021.69 and 15,422.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,021.69 : 15,422.91 = 15,422.91 : x
2. Step 2: Convert to fraction form
   7,021.69/15,422.91 = 15,422.91/x
3. Step 3: Cross multiply
   7,021.69x = 15,422.91 × 15,422.91
4. Step 4: Simplify right side
   7,021.69x = 237,866,037.20
5. Step 5: Solve for x
   x = 237,866,037.20/7,021.69
6. Step 6: Final answer
   x = 33,875.91