Finding the Third Proportional to 28,422.50 and 39,744.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,422.50 : 39,744.75 = 39,744.75 : x
2. Step 2: Convert to fraction form
   28,422.50/39,744.75 = 39,744.75/x
3. Step 3: Cross multiply
   28,422.50x = 39,744.75 × 39,744.75
4. Step 4: Simplify right side
   28,422.50x = 1,579,645,152.56
5. Step 5: Solve for x
   x = 1,579,645,152.56/28,422.50
6. Step 6: Final answer
   x = 55,577.28