Finding the Third Proportional to 1,621.27 and 3,436.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.27 : 3,436.17 = 3,436.17 : x
2. Step 2: Convert to fraction form
   1,621.27/3,436.17 = 3,436.17/x
3. Step 3: Cross multiply
   1,621.27x = 3,436.17 × 3,436.17
4. Step 4: Simplify right side
   1,621.27x = 11,807,277.15
5. Step 5: Solve for x
   x = 11,807,277.15/1,621.27
6. Step 6: Final answer
   x = 7,282.75