Finding the Third Proportional to 18,171 and 42,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,171 : 42,403.50 = 42,403.50 : x
2. Step 2: Convert to fraction form
   18,171/42,403.50 = 42,403.50/x
3. Step 3: Cross multiply
   18,171x = 42,403.50 × 42,403.50
4. Step 4: Simplify right side
   18,171x = 1,798,056,812.25
5. Step 5: Solve for x
   x = 1,798,056,812.25/18,171
6. Step 6: Final answer
   x = 98,952.00