Finding the Third Proportional to 73,469 and 86,429

Step by Step Solution

1. Step 1: Write the proportion equation
   73,469 : 86,429 = 86,429 : x
2. Step 2: Convert to fraction form
   73,469/86,429 = 86,429/x
3. Step 3: Cross multiply
   73,469x = 86,429 × 86,429
4. Step 4: Simplify right side
   73,469x = 7,469,972,041
5. Step 5: Solve for x
   x = 7,469,972,041/73,469
6. Step 6: Final answer
   x = 101,675.16