Finding the Third Proportional to 42,337.50 and 57,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,337.50 : 57,667.50 = 57,667.50 : x
2. Step 2: Convert to fraction form
   42,337.50/57,667.50 = 57,667.50/x
3. Step 3: Cross multiply
   42,337.50x = 57,667.50 × 57,667.50
4. Step 4: Simplify right side
   42,337.50x = 3,325,540,556.25
5. Step 5: Solve for x
   x = 3,325,540,556.25/42,337.50
6. Step 6: Final answer
   x = 78,548.34