Finding the Third Proportional to 40,290 and 63,628

Step by Step Solution

1. Step 1: Write the proportion equation
   40,290 : 63,628 = 63,628 : x
2. Step 2: Convert to fraction form
   40,290/63,628 = 63,628/x
3. Step 3: Cross multiply
   40,290x = 63,628 × 63,628
4. Step 4: Simplify right side
   40,290x = 4,048,522,384
5. Step 5: Solve for x
   x = 4,048,522,384/40,290
6. Step 6: Final answer
   x = 100,484.55