Finding the Third Proportional to 42,938 and 91,540

Step by Step Solution

1. Step 1: Write the proportion equation
   42,938 : 91,540 = 91,540 : x
2. Step 2: Convert to fraction form
   42,938/91,540 = 91,540/x
3. Step 3: Cross multiply
   42,938x = 91,540 × 91,540
4. Step 4: Simplify right side
   42,938x = 8,379,571,600
5. Step 5: Solve for x
   x = 8,379,571,600/42,938
6. Step 6: Final answer
   x = 195,155.14