Finding the Third Proportional to 28,388.81 and 39,367.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,388.81 : 39,367.69 = 39,367.69 : x
2. Step 2: Convert to fraction form
   28,388.81/39,367.69 = 39,367.69/x
3. Step 3: Cross multiply
   28,388.81x = 39,367.69 × 39,367.69
4. Step 4: Simplify right side
   28,388.81x = 1,549,814,819.10
5. Step 5: Solve for x
   x = 1,549,814,819.10/28,388.81
6. Step 6: Final answer
   x = 54,592.45