Finding the Third Proportional to 10,810.13 and 15,091.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,810.13 : 15,091.31 = 15,091.31 : x
2. Step 2: Convert to fraction form
   10,810.13/15,091.31 = 15,091.31/x
3. Step 3: Cross multiply
   10,810.13x = 15,091.31 × 15,091.31
4. Step 4: Simplify right side
   10,810.13x = 227,747,712.97
5. Step 5: Solve for x
   x = 227,747,712.97/10,810.13
6. Step 6: Final answer
   x = 21,068.00