Finding the Third Proportional to 69,108 and 150,721.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,108 : 150,721.50 = 150,721.50 : x
2. Step 2: Convert to fraction form
   69,108/150,721.50 = 150,721.50/x
3. Step 3: Cross multiply
   69,108x = 150,721.50 × 150,721.50
4. Step 4: Simplify right side
   69,108x = 22,716,970,562.25
5. Step 5: Solve for x
   x = 22,716,970,562.25/69,108
6. Step 6: Final answer
   x = 328,716.94