Finding the Third Proportional to 3,656.81 and 7,934.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656.81 : 7,934.63 = 7,934.63 : x
2. Step 2: Convert to fraction form
   3,656.81/7,934.63 = 7,934.63/x
3. Step 3: Cross multiply
   3,656.81x = 7,934.63 × 7,934.63
4. Step 4: Simplify right side
   3,656.81x = 62,958,273.89
5. Step 5: Solve for x
   x = 62,958,273.89/3,656.81
6. Step 6: Final answer
   x = 17,216.71