Finding the Third Proportional to 121,293 and 173,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   121,293 : 173,680.50 = 173,680.50 : x
2. Step 2: Convert to fraction form
   121,293/173,680.50 = 173,680.50/x
3. Step 3: Cross multiply
   121,293x = 173,680.50 × 173,680.50
4. Step 4: Simplify right side
   121,293x = 30,164,916,080.25
5. Step 5: Solve for x
   x = 30,164,916,080.25/121,293
6. Step 6: Final answer
   x = 248,694.62