Finding the Third Proportional to 105,302.53 and 169,636.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,302.53 : 169,636.78 = 169,636.78 : x
2. Step 2: Convert to fraction form
   105,302.53/169,636.78 = 169,636.78/x
3. Step 3: Cross multiply
   105,302.53x = 169,636.78 × 169,636.78
4. Step 4: Simplify right side
   105,302.53x = 28,776,637,552.86
5. Step 5: Solve for x
   x = 28,776,637,552.86/105,302.53
6. Step 6: Final answer
   x = 273,275.84