Finding the Third Proportional to 19,078.50 and 40,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,078.50 : 40,978.50 = 40,978.50 : x
2. Step 2: Convert to fraction form
   19,078.50/40,978.50 = 40,978.50/x
3. Step 3: Cross multiply
   19,078.50x = 40,978.50 × 40,978.50
4. Step 4: Simplify right side
   19,078.50x = 1,679,237,462.25
5. Step 5: Solve for x
   x = 1,679,237,462.25/19,078.50
6. Step 6: Final answer
   x = 88,017.27