Finding the Third Proportional to 810.50 and 1,915.25

Step by Step Solution

1. Step 1: Write the proportion equation
   810.50 : 1,915.25 = 1,915.25 : x
2. Step 2: Convert to fraction form
   810.50/1,915.25 = 1,915.25/x
3. Step 3: Cross multiply
   810.50x = 1,915.25 × 1,915.25
4. Step 4: Simplify right side
   810.50x = 3,668,182.56
5. Step 5: Solve for x
   x = 3,668,182.56/810.50
6. Step 6: Final answer
   x = 4,525.83