Finding the Third Proportional to 39,613.50 and 54,479.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,613.50 : 54,479.25 = 54,479.25 : x
2. Step 2: Convert to fraction form
   39,613.50/54,479.25 = 54,479.25/x
3. Step 3: Cross multiply
   39,613.50x = 54,479.25 × 54,479.25
4. Step 4: Simplify right side
   39,613.50x = 2,967,988,680.56
5. Step 5: Solve for x
   x = 2,967,988,680.56/39,613.50
6. Step 6: Final answer
   x = 74,923.67