Finding the Third Proportional to 56,145 and 120,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,145 : 120,067.50 = 120,067.50 : x
2. Step 2: Convert to fraction form
   56,145/120,067.50 = 120,067.50/x
3. Step 3: Cross multiply
   56,145x = 120,067.50 × 120,067.50
4. Step 4: Simplify right side
   56,145x = 14,416,204,556.25
5. Step 5: Solve for x
   x = 14,416,204,556.25/56,145
6. Step 6: Final answer
   x = 256,767.38