Finding the Third Proportional to 112,809.50 and 169,238

Step by Step Solution

1. Step 1: Write the proportion equation
   112,809.50 : 169,238 = 169,238 : x
2. Step 2: Convert to fraction form
   112,809.50/169,238 = 169,238/x
3. Step 3: Cross multiply
   112,809.50x = 169,238 × 169,238
4. Step 4: Simplify right side
   112,809.50x = 28,641,500,644
5. Step 5: Solve for x
   x = 28,641,500,644/112,809.50
6. Step 6: Final answer
   x = 253,892.63