Finding the Third Proportional to 42,761.25 and 66,372.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,761.25 : 66,372.75 = 66,372.75 : x
2. Step 2: Convert to fraction form
   42,761.25/66,372.75 = 66,372.75/x
3. Step 3: Cross multiply
   42,761.25x = 66,372.75 × 66,372.75
4. Step 4: Simplify right side
   42,761.25x = 4,405,341,942.56
5. Step 5: Solve for x
   x = 4,405,341,942.56/42,761.25
6. Step 6: Final answer
   x = 103,021.82