Finding the Third Proportional to 7,786.13 and 17,521.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,786.13 : 17,521.31 = 17,521.31 : x
2. Step 2: Convert to fraction form
   7,786.13/17,521.31 = 17,521.31/x
3. Step 3: Cross multiply
   7,786.13x = 17,521.31 × 17,521.31
4. Step 4: Simplify right side
   7,786.13x = 306,996,391.72
5. Step 5: Solve for x
   x = 306,996,391.72/7,786.13
6. Step 6: Final answer
   x = 39,428.65