Finding the Third Proportional to 109,718.50 and 163,860

Step by Step Solution

1. Step 1: Write the proportion equation
   109,718.50 : 163,860 = 163,860 : x
2. Step 2: Convert to fraction form
   109,718.50/163,860 = 163,860/x
3. Step 3: Cross multiply
   109,718.50x = 163,860 × 163,860
4. Step 4: Simplify right side
   109,718.50x = 26,850,099,600
5. Step 5: Solve for x
   x = 26,850,099,600/109,718.50
6. Step 6: Final answer
   x = 244,718.07