Finding the Third Proportional to 42,450.75 and 57,448.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,450.75 : 57,448.13 = 57,448.13 : x
2. Step 2: Convert to fraction form
   42,450.75/57,448.13 = 57,448.13/x
3. Step 3: Cross multiply
   42,450.75x = 57,448.13 × 57,448.13
4. Step 4: Simplify right side
   42,450.75x = 3,300,287,066.02
5. Step 5: Solve for x
   x = 3,300,287,066.02/42,450.75
6. Step 6: Final answer
   x = 77,743.90