Finding the Third Proportional to 68,814 and 109,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,814 : 109,480.50 = 109,480.50 : x
2. Step 2: Convert to fraction form
   68,814/109,480.50 = 109,480.50/x
3. Step 3: Cross multiply
   68,814x = 109,480.50 × 109,480.50
4. Step 4: Simplify right side
   68,814x = 11,985,979,880.25
5. Step 5: Solve for x
   x = 11,985,979,880.25/68,814
6. Step 6: Final answer
   x = 174,179.38