Finding the Third Proportional to 7,809.88 and 17,139.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,809.88 : 17,139.75 = 17,139.75 : x
2. Step 2: Convert to fraction form
   7,809.88/17,139.75 = 17,139.75/x
3. Step 3: Cross multiply
   7,809.88x = 17,139.75 × 17,139.75
4. Step 4: Simplify right side
   7,809.88x = 293,771,030.06
5. Step 5: Solve for x
   x = 293,771,030.06/7,809.88
6. Step 6: Final answer
   x = 37,615.33