Finding the Third Proportional to 10,991.63 and 17,030.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.63 : 17,030.63 = 17,030.63 : x
2. Step 2: Convert to fraction form
   10,991.63/17,030.63 = 17,030.63/x
3. Step 3: Cross multiply
   10,991.63x = 17,030.63 × 17,030.63
4. Step 4: Simplify right side
   10,991.63x = 290,042,187.89
5. Step 5: Solve for x
   x = 290,042,187.89/10,991.63
6. Step 6: Final answer
   x = 26,387.56