Finding the Third Proportional to 42,348 and 58,122

Step by Step Solution

1. Step 1: Write the proportion equation
   42,348 : 58,122 = 58,122 : x
2. Step 2: Convert to fraction form
   42,348/58,122 = 58,122/x
3. Step 3: Cross multiply
   42,348x = 58,122 × 58,122
4. Step 4: Simplify right side
   42,348x = 3,378,166,884
5. Step 5: Solve for x
   x = 3,378,166,884/42,348
6. Step 6: Final answer
   x = 79,771.58