Finding the Third Proportional to 36,067.50 and 78,690

Step by Step Solution

1. Step 1: Write the proportion equation
   36,067.50 : 78,690 = 78,690 : x
2. Step 2: Convert to fraction form
   36,067.50/78,690 = 78,690/x
3. Step 3: Cross multiply
   36,067.50x = 78,690 × 78,690
4. Step 4: Simplify right side
   36,067.50x = 6,192,116,100
5. Step 5: Solve for x
   x = 6,192,116,100/36,067.50
6. Step 6: Final answer
   x = 171,681.32