Finding the Third Proportional to 1,606.88 and 3,521.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.88 : 3,521.47 = 3,521.47 : x
2. Step 2: Convert to fraction form
   1,606.88/3,521.47 = 3,521.47/x
3. Step 3: Cross multiply
   1,606.88x = 3,521.47 × 3,521.47
4. Step 4: Simplify right side
   1,606.88x = 12,400,742.16
5. Step 5: Solve for x
   x = 12,400,742.16/1,606.88
6. Step 6: Final answer
   x = 7,717.30