Finding the Third Proportional to 109,328.63 and 168,662.81

Step by Step Solution

1. Step 1: Write the proportion equation
   109,328.63 : 168,662.81 = 168,662.81 : x
2. Step 2: Convert to fraction form
   109,328.63/168,662.81 = 168,662.81/x
3. Step 3: Cross multiply
   109,328.63x = 168,662.81 × 168,662.81
4. Step 4: Simplify right side
   109,328.63x = 28,447,144,320.41
5. Step 5: Solve for x
   x = 28,447,144,320.41/109,328.63
6. Step 6: Final answer
   x = 260,198.50