Finding the Third Proportional to 1,315 and 2,673.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315 : 2,673.50 = 2,673.50 : x
2. Step 2: Convert to fraction form
   1,315/2,673.50 = 2,673.50/x
3. Step 3: Cross multiply
   1,315x = 2,673.50 × 2,673.50
4. Step 4: Simplify right side
   1,315x = 7,147,602.25
5. Step 5: Solve for x
   x = 7,147,602.25/1,315
6. Step 6: Final answer
   x = 5,435.44