Finding the Third Proportional to 39,147.75 and 85,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,147.75 : 85,630.50 = 85,630.50 : x
2. Step 2: Convert to fraction form
   39,147.75/85,630.50 = 85,630.50/x
3. Step 3: Cross multiply
   39,147.75x = 85,630.50 × 85,630.50
4. Step 4: Simplify right side
   39,147.75x = 7,332,582,530.25
5. Step 5: Solve for x
   x = 7,332,582,530.25/39,147.75
6. Step 6: Final answer
   x = 187,305.34