Finding the Third Proportional to 30,739.88 and 63,396.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,739.88 : 63,396.38 = 63,396.38 : x
2. Step 2: Convert to fraction form
   30,739.88/63,396.38 = 63,396.38/x
3. Step 3: Cross multiply
   30,739.88x = 63,396.38 × 63,396.38
4. Step 4: Simplify right side
   30,739.88x = 4,019,100,363.14
5. Step 5: Solve for x
   x = 4,019,100,363.14/30,739.88
6. Step 6: Final answer
   x = 130,745.50