Finding the Third Proportional to 42,177 and 67,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,177 : 67,210.50 = 67,210.50 : x
2. Step 2: Convert to fraction form
   42,177/67,210.50 = 67,210.50/x
3. Step 3: Cross multiply
   42,177x = 67,210.50 × 67,210.50
4. Step 4: Simplify right side
   42,177x = 4,517,251,310.25
5. Step 5: Solve for x
   x = 4,517,251,310.25/42,177
6. Step 6: Final answer
   x = 107,102.24