Finding the Third Proportional to 19,710 and 40,339.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,710 : 40,339.69 = 40,339.69 : x
2. Step 2: Convert to fraction form
   19,710/40,339.69 = 40,339.69/x
3. Step 3: Cross multiply
   19,710x = 40,339.69 × 40,339.69
4. Step 4: Simplify right side
   19,710x = 1,627,290,387.60
5. Step 5: Solve for x
   x = 1,627,290,387.60/19,710
6. Step 6: Final answer
   x = 82,561.66