Finding the Third Proportional to 63,613 and 84,109

Step by Step Solution

1. Step 1: Write the proportion equation
   63,613 : 84,109 = 84,109 : x
2. Step 2: Convert to fraction form
   63,613/84,109 = 84,109/x
3. Step 3: Cross multiply
   63,613x = 84,109 × 84,109
4. Step 4: Simplify right side
   63,613x = 7,074,323,881
5. Step 5: Solve for x
   x = 7,074,323,881/63,613
6. Step 6: Final answer
   x = 111,208.78