Finding the Third Proportional to 108,772.88 and 161,109

Step by Step Solution

1. Step 1: Write the proportion equation
   108,772.88 : 161,109 = 161,109 : x
2. Step 2: Convert to fraction form
   108,772.88/161,109 = 161,109/x
3. Step 3: Cross multiply
   108,772.88x = 161,109 × 161,109
4. Step 4: Simplify right side
   108,772.88x = 25,956,109,881
5. Step 5: Solve for x
   x = 25,956,109,881/108,772.88
6. Step 6: Final answer
   x = 238,626.68