Finding the Third Proportional to 1,087.50 and 1,917

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.50 : 1,917 = 1,917 : x
2. Step 2: Convert to fraction form
   1,087.50/1,917 = 1,917/x
3. Step 3: Cross multiply
   1,087.50x = 1,917 × 1,917
4. Step 4: Simplify right side
   1,087.50x = 3,674,889
5. Step 5: Solve for x
   x = 3,674,889/1,087.50
6. Step 6: Final answer
   x = 3,379.21