Finding the Third Proportional to 112,221 and 172,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,221 : 172,480.50 = 172,480.50 : x
2. Step 2: Convert to fraction form
   112,221/172,480.50 = 172,480.50/x
3. Step 3: Cross multiply
   112,221x = 172,480.50 × 172,480.50
4. Step 4: Simplify right side
   112,221x = 29,749,522,880.25
5. Step 5: Solve for x
   x = 29,749,522,880.25/112,221
6. Step 6: Final answer
   x = 265,097.65