Finding the Third Proportional to 19,790.26 and 40,386.41

Step by Step Solution

1. Step 1: Write the proportion equation
   19,790.26 : 40,386.41 = 40,386.41 : x
2. Step 2: Convert to fraction form
   19,790.26/40,386.41 = 40,386.41/x
3. Step 3: Cross multiply
   19,790.26x = 40,386.41 × 40,386.41
4. Step 4: Simplify right side
   19,790.26x = 1,631,062,125.31
5. Step 5: Solve for x
   x = 1,631,062,125.31/19,790.26
6. Step 6: Final answer
   x = 82,417.41