Finding the Third Proportional to 68,040 and 108,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,040 : 108,076.50 = 108,076.50 : x
2. Step 2: Convert to fraction form
   68,040/108,076.50 = 108,076.50/x
3. Step 3: Cross multiply
   68,040x = 108,076.50 × 108,076.50
4. Step 4: Simplify right side
   68,040x = 11,680,529,852.25
5. Step 5: Solve for x
   x = 11,680,529,852.25/68,040
6. Step 6: Final answer
   x = 171,671.51