Finding the Third Proportional to 19,115.53 and 39,575.16

Step by Step Solution

1. Step 1: Write the proportion equation
   19,115.53 : 39,575.16 = 39,575.16 : x
2. Step 2: Convert to fraction form
   19,115.53/39,575.16 = 39,575.16/x
3. Step 3: Cross multiply
   19,115.53x = 39,575.16 × 39,575.16
4. Step 4: Simplify right side
   19,115.53x = 1,566,192,992.21
5. Step 5: Solve for x
   x = 1,566,192,992.21/19,115.53
6. Step 6: Final answer
   x = 81,933.01