Finding the Third Proportional to 31,146.50 and 73,121.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,146.50 : 73,121.25 = 73,121.25 : x
2. Step 2: Convert to fraction form
   31,146.50/73,121.25 = 73,121.25/x
3. Step 3: Cross multiply
   31,146.50x = 73,121.25 × 73,121.25
4. Step 4: Simplify right side
   31,146.50x = 5,346,717,201.56
5. Step 5: Solve for x
   x = 5,346,717,201.56/31,146.50
6. Step 6: Final answer
   x = 171,663.50