Finding the Third Proportional to 68,172 and 104,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,172 : 104,638.50 = 104,638.50 : x
2. Step 2: Convert to fraction form
   68,172/104,638.50 = 104,638.50/x
3. Step 3: Cross multiply
   68,172x = 104,638.50 × 104,638.50
4. Step 4: Simplify right side
   68,172x = 10,949,215,682.25
5. Step 5: Solve for x
   x = 10,949,215,682.25/68,172
6. Step 6: Final answer
   x = 160,611.62