Finding the Third Proportional to 40,478 and 60,574

Step by Step Solution

1. Step 1: Write the proportion equation
   40,478 : 60,574 = 60,574 : x
2. Step 2: Convert to fraction form
   40,478/60,574 = 60,574/x
3. Step 3: Cross multiply
   40,478x = 60,574 × 60,574
4. Step 4: Simplify right side
   40,478x = 3,669,209,476
5. Step 5: Solve for x
   x = 3,669,209,476/40,478
6. Step 6: Final answer
   x = 90,647.01