Finding the Third Proportional to 1,117.50 and 1,611.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.50 : 1,611.75 = 1,611.75 : x
2. Step 2: Convert to fraction form
   1,117.50/1,611.75 = 1,611.75/x
3. Step 3: Cross multiply
   1,117.50x = 1,611.75 × 1,611.75
4. Step 4: Simplify right side
   1,117.50x = 2,597,738.06
5. Step 5: Solve for x
   x = 2,597,738.06/1,117.50
6. Step 6: Final answer
   x = 2,324.60