Finding the Third Proportional to 39,211.59 and 85,910.63

Step by Step Solution

1. Step 1: Write the proportion equation
   39,211.59 : 85,910.63 = 85,910.63 : x
2. Step 2: Convert to fraction form
   39,211.59/85,910.63 = 85,910.63/x
3. Step 3: Cross multiply
   39,211.59x = 85,910.63 × 85,910.63
4. Step 4: Simplify right side
   39,211.59x = 7,380,635,487.89
5. Step 5: Solve for x
   x = 7,380,635,487.89/39,211.59
6. Step 6: Final answer
   x = 188,225.85