Finding the Third Proportional to 105,436.50 and 168,630.75

Step by Step Solution

1. Step 1: Write the proportion equation
   105,436.50 : 168,630.75 = 168,630.75 : x
2. Step 2: Convert to fraction form
   105,436.50/168,630.75 = 168,630.75/x
3. Step 3: Cross multiply
   105,436.50x = 168,630.75 × 168,630.75
4. Step 4: Simplify right side
   105,436.50x = 28,436,329,845.56
5. Step 5: Solve for x
   x = 28,436,329,845.56/105,436.50
6. Step 6: Final answer
   x = 269,701.00