Finding the Third Proportional to 3,557.81 and 7,783.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557.81 : 7,783.03 = 7,783.03 : x
2. Step 2: Convert to fraction form
   3,557.81/7,783.03 = 7,783.03/x
3. Step 3: Cross multiply
   3,557.81x = 7,783.03 × 7,783.03
4. Step 4: Simplify right side
   3,557.81x = 60,575,575.44
5. Step 5: Solve for x
   x = 60,575,575.44/3,557.81
6. Step 6: Final answer
   x = 17,026.07