Finding the Third Proportional to 69,131.25 and 109,923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,131.25 : 109,923.50 = 109,923.50 : x
2. Step 2: Convert to fraction form
   69,131.25/109,923.50 = 109,923.50/x
3. Step 3: Cross multiply
   69,131.25x = 109,923.50 × 109,923.50
4. Step 4: Simplify right side
   69,131.25x = 12,083,175,852.25
5. Step 5: Solve for x
   x = 12,083,175,852.25/69,131.25
6. Step 6: Final answer
   x = 174,786.02