Finding the Third Proportional to 31,180.50 and 68,923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,180.50 : 68,923.50 = 68,923.50 : x
2. Step 2: Convert to fraction form
   31,180.50/68,923.50 = 68,923.50/x
3. Step 3: Cross multiply
   31,180.50x = 68,923.50 × 68,923.50
4. Step 4: Simplify right side
   31,180.50x = 4,750,448,852.25
5. Step 5: Solve for x
   x = 4,750,448,852.25/31,180.50
6. Step 6: Final answer
   x = 152,353.20