Finding the Third Proportional to 1,172.52 and 2,479.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172.52 : 2,479.60 = 2,479.60 : x
2. Step 2: Convert to fraction form
   1,172.52/2,479.60 = 2,479.60/x
3. Step 3: Cross multiply
   1,172.52x = 2,479.60 × 2,479.60
4. Step 4: Simplify right side
   1,172.52x = 6,148,399.69
5. Step 5: Solve for x
   x = 6,148,399.69/1,172.52
6. Step 6: Final answer
   x = 5,243.74