Finding the Third Proportional to 1,611.75 and 3,559.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.75 : 3,559.88 = 3,559.88 : x
2. Step 2: Convert to fraction form
   1,611.75/3,559.88 = 3,559.88/x
3. Step 3: Cross multiply
   1,611.75x = 3,559.88 × 3,559.88
4. Step 4: Simplify right side
   1,611.75x = 12,672,710.02
5. Step 5: Solve for x
   x = 12,672,710.02/1,611.75
6. Step 6: Final answer
   x = 7,862.70