Finding the Third Proportional to 31,690.25 and 47,436.65

Step by Step Solution

1. Step 1: Write the proportion equation
   31,690.25 : 47,436.65 = 47,436.65 : x
2. Step 2: Convert to fraction form
   31,690.25/47,436.65 = 47,436.65/x
3. Step 3: Cross multiply
   31,690.25x = 47,436.65 × 47,436.65
4. Step 4: Simplify right side
   31,690.25x = 2,250,236,078.23
5. Step 5: Solve for x
   x = 2,250,236,078.23/31,690.25
6. Step 6: Final answer
   x = 71,007.21