Finding the Third Proportional to 18,510.19 and 27,430.31

Step by Step Solution

1. Step 1: Write the proportion equation
   18,510.19 : 27,430.31 = 27,430.31 : x
2. Step 2: Convert to fraction form
   18,510.19/27,430.31 = 27,430.31/x
3. Step 3: Cross multiply
   18,510.19x = 27,430.31 × 27,430.31
4. Step 4: Simplify right side
   18,510.19x = 752,422,043.85
5. Step 5: Solve for x
   x = 752,422,043.85/18,510.19
6. Step 6: Final answer
   x = 40,649.08