Finding the Third Proportional to 31,142.50 and 48,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142.50 : 48,945.50 = 48,945.50 : x
2. Step 2: Convert to fraction form
   31,142.50/48,945.50 = 48,945.50/x
3. Step 3: Cross multiply
   31,142.50x = 48,945.50 × 48,945.50
4. Step 4: Simplify right side
   31,142.50x = 2,395,661,970.25
5. Step 5: Solve for x
   x = 2,395,661,970.25/31,142.50
6. Step 6: Final answer
   x = 76,925.81