Finding the Third Proportional to 41,423 and 64,290

Step by Step Solution

1. Step 1: Write the proportion equation
   41,423 : 64,290 = 64,290 : x
2. Step 2: Convert to fraction form
   41,423/64,290 = 64,290/x
3. Step 3: Cross multiply
   41,423x = 64,290 × 64,290
4. Step 4: Simplify right side
   41,423x = 4,133,204,100
5. Step 5: Solve for x
   x = 4,133,204,100/41,423
6. Step 6: Final answer
   x = 99,780.41