Finding the Third Proportional to 42,384.75 and 57,561.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,384.75 : 57,561.75 = 57,561.75 : x
2. Step 2: Convert to fraction form
   42,384.75/57,561.75 = 57,561.75/x
3. Step 3: Cross multiply
   42,384.75x = 57,561.75 × 57,561.75
4. Step 4: Simplify right side
   42,384.75x = 3,313,355,063.06
5. Step 5: Solve for x
   x = 3,313,355,063.06/42,384.75
6. Step 6: Final answer
   x = 78,173.28