Finding the Third Proportional to 15,978.75 and 34,410.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15,978.75 : 34,410.38 = 34,410.38 : x
2. Step 2: Convert to fraction form
   15,978.75/34,410.38 = 34,410.38/x
3. Step 3: Cross multiply
   15,978.75x = 34,410.38 × 34,410.38
4. Step 4: Simplify right side
   15,978.75x = 1,184,073,907.64
5. Step 5: Solve for x
   x = 1,184,073,907.64/15,978.75
6. Step 6: Final answer
   x = 74,103.04