Finding the Third Proportional to 42,448.50 and 57,444.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,448.50 : 57,444.94 = 57,444.94 : x
2. Step 2: Convert to fraction form
   42,448.50/57,444.94 = 57,444.94/x
3. Step 3: Cross multiply
   42,448.50x = 57,444.94 × 57,444.94
4. Step 4: Simplify right side
   42,448.50x = 3,299,920,844.38
5. Step 5: Solve for x
   x = 3,299,920,844.38/42,448.50
6. Step 6: Final answer
   x = 77,739.40