Finding the Third Proportional to 42,772.50 and 67,187.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,772.50 : 67,187.25 = 67,187.25 : x
2. Step 2: Convert to fraction form
   42,772.50/67,187.25 = 67,187.25/x
3. Step 3: Cross multiply
   42,772.50x = 67,187.25 × 67,187.25
4. Step 4: Simplify right side
   42,772.50x = 4,514,126,562.56
5. Step 5: Solve for x
   x = 4,514,126,562.56/42,772.50
6. Step 6: Final answer
   x = 105,538.06