Finding the Third Proportional to 28,494 and 42,509.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,494 : 42,509.25 = 42,509.25 : x
2. Step 2: Convert to fraction form
   28,494/42,509.25 = 42,509.25/x
3. Step 3: Cross multiply
   28,494x = 42,509.25 × 42,509.25
4. Step 4: Simplify right side
   28,494x = 1,807,036,335.56
5. Step 5: Solve for x
   x = 1,807,036,335.56/28,494
6. Step 6: Final answer
   x = 63,418.13