Finding the Third Proportional to 40,290 and 58,977

Step by Step Solution

1. Step 1: Write the proportion equation
   40,290 : 58,977 = 58,977 : x
2. Step 2: Convert to fraction form
   40,290/58,977 = 58,977/x
3. Step 3: Cross multiply
   40,290x = 58,977 × 58,977
4. Step 4: Simplify right side
   40,290x = 3,478,286,529
5. Step 5: Solve for x
   x = 3,478,286,529/40,290
6. Step 6: Final answer
   x = 86,331.26