Finding the Third Proportional to 80,447 and 105,788

Step by Step Solution

1. Step 1: Write the proportion equation
   80,447 : 105,788 = 105,788 : x
2. Step 2: Convert to fraction form
   80,447/105,788 = 105,788/x
3. Step 3: Cross multiply
   80,447x = 105,788 × 105,788
4. Step 4: Simplify right side
   80,447x = 11,191,100,944
5. Step 5: Solve for x
   x = 11,191,100,944/80,447
6. Step 6: Final answer
   x = 139,111.48