Finding the Third Proportional to 31,143.75 and 73,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,143.75 : 73,114.50 = 73,114.50 : x
2. Step 2: Convert to fraction form
   31,143.75/73,114.50 = 73,114.50/x
3. Step 3: Cross multiply
   31,143.75x = 73,114.50 × 73,114.50
4. Step 4: Simplify right side
   31,143.75x = 5,345,730,110.25
5. Step 5: Solve for x
   x = 5,345,730,110.25/31,143.75
6. Step 6: Final answer
   x = 171,646.96