Finding the Third Proportional to 28,464.75 and 42,542.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,464.75 : 42,542.72 = 42,542.72 : x
2. Step 2: Convert to fraction form
   28,464.75/42,542.72 = 42,542.72/x
3. Step 3: Cross multiply
   28,464.75x = 42,542.72 × 42,542.72
4. Step 4: Simplify right side
   28,464.75x = 1,809,882,918.64
5. Step 5: Solve for x
   x = 1,809,882,918.64/28,464.75
6. Step 6: Final answer
   x = 63,583.31