Finding the Third Proportional to 39,168.56 and 85,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,168.56 : 85,171.50 = 85,171.50 : x
2. Step 2: Convert to fraction form
   39,168.56/85,171.50 = 85,171.50/x
3. Step 3: Cross multiply
   39,168.56x = 85,171.50 × 85,171.50
4. Step 4: Simplify right side
   39,168.56x = 7,254,184,412.25
5. Step 5: Solve for x
   x = 7,254,184,412.25/39,168.56
6. Step 6: Final answer
   x = 185,204.25