Finding the Third Proportional to 42,386 and 58,176

Step by Step Solution

1. Step 1: Write the proportion equation
   42,386 : 58,176 = 58,176 : x
2. Step 2: Convert to fraction form
   42,386/58,176 = 58,176/x
3. Step 3: Cross multiply
   42,386x = 58,176 × 58,176
4. Step 4: Simplify right side
   42,386x = 3,384,446,976
5. Step 5: Solve for x
   x = 3,384,446,976/42,386
6. Step 6: Final answer
   x = 79,848.23