Finding the Third Proportional to 1,515.80 and 2,423.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515.80 : 2,423.67 = 2,423.67 : x
2. Step 2: Convert to fraction form
   1,515.80/2,423.67 = 2,423.67/x
3. Step 3: Cross multiply
   1,515.80x = 2,423.67 × 2,423.67
4. Step 4: Simplify right side
   1,515.80x = 5,874,185.36
5. Step 5: Solve for x
   x = 5,874,185.36/1,515.80
6. Step 6: Final answer
   x = 3,875.31