Finding the Third Proportional to 87,479.16 and 123,273.56

Step by Step Solution

1. Step 1: Write the proportion equation
   87,479.16 : 123,273.56 = 123,273.56 : x
2. Step 2: Convert to fraction form
   87,479.16/123,273.56 = 123,273.56/x
3. Step 3: Cross multiply
   87,479.16x = 123,273.56 × 123,273.56
4. Step 4: Simplify right side
   87,479.16x = 15,196,371,211.44
5. Step 5: Solve for x
   x = 15,196,371,211.44/87,479.16
6. Step 6: Final answer
   x = 173,714.20