Finding the Third Proportional to 9,356.77 and 20,287.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,356.77 : 20,287.34 = 20,287.34 : x
2. Step 2: Convert to fraction form
   9,356.77/20,287.34 = 20,287.34/x
3. Step 3: Cross multiply
   9,356.77x = 20,287.34 × 20,287.34
4. Step 4: Simplify right side
   9,356.77x = 411,575,999.44
5. Step 5: Solve for x
   x = 411,575,999.44/9,356.77
6. Step 6: Final answer
   x = 43,986.99