Finding the Third Proportional to 42,368 and 56,482

Step by Step Solution

1. Step 1: Write the proportion equation
   42,368 : 56,482 = 56,482 : x
2. Step 2: Convert to fraction form
   42,368/56,482 = 56,482/x
3. Step 3: Cross multiply
   42,368x = 56,482 × 56,482
4. Step 4: Simplify right side
   42,368x = 3,190,216,324
5. Step 5: Solve for x
   x = 3,190,216,324/42,368
6. Step 6: Final answer
   x = 75,297.78