Finding the Third Proportional to 28,713 and 42,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,713 : 42,067.50 = 42,067.50 : x
2. Step 2: Convert to fraction form
   28,713/42,067.50 = 42,067.50/x
3. Step 3: Cross multiply
   28,713x = 42,067.50 × 42,067.50
4. Step 4: Simplify right side
   28,713x = 1,769,674,556.25
5. Step 5: Solve for x
   x = 1,769,674,556.25/28,713
6. Step 6: Final answer
   x = 61,633.22