Finding the Third Proportional to 39,171 and 85,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,171 : 85,358.50 = 85,358.50 : x
2. Step 2: Convert to fraction form
   39,171/85,358.50 = 85,358.50/x
3. Step 3: Cross multiply
   39,171x = 85,358.50 × 85,358.50
4. Step 4: Simplify right side
   39,171x = 7,286,073,522.25
5. Step 5: Solve for x
   x = 7,286,073,522.25/39,171
6. Step 6: Final answer
   x = 186,006.83