Finding the Third Proportional to 40,348 and 56,436

Step by Step Solution

1. Step 1: Write the proportion equation
   40,348 : 56,436 = 56,436 : x
2. Step 2: Convert to fraction form
   40,348/56,436 = 56,436/x
3. Step 3: Cross multiply
   40,348x = 56,436 × 56,436
4. Step 4: Simplify right side
   40,348x = 3,185,022,096
5. Step 5: Solve for x
   x = 3,185,022,096/40,348
6. Step 6: Final answer
   x = 78,938.78