Finding the Third Proportional to 1,890.50 and 4,085.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.50 : 4,085.25 = 4,085.25 : x
2. Step 2: Convert to fraction form
   1,890.50/4,085.25 = 4,085.25/x
3. Step 3: Cross multiply
   1,890.50x = 4,085.25 × 4,085.25
4. Step 4: Simplify right side
   1,890.50x = 16,689,267.56
5. Step 5: Solve for x
   x = 16,689,267.56/1,890.50
6. Step 6: Final answer
   x = 8,827.96