Finding the Third Proportional to 31,112 and 73,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,112 : 73,132.50 = 73,132.50 : x
2. Step 2: Convert to fraction form
   31,112/73,132.50 = 73,132.50/x
3. Step 3: Cross multiply
   31,112x = 73,132.50 × 73,132.50
4. Step 4: Simplify right side
   31,112x = 5,348,362,556.25
5. Step 5: Solve for x
   x = 5,348,362,556.25/31,112
6. Step 6: Final answer
   x = 171,906.74