Finding the Third Proportional to 69,161 and 109,790

Step by Step Solution

1. Step 1: Write the proportion equation
   69,161 : 109,790 = 109,790 : x
2. Step 2: Convert to fraction form
   69,161/109,790 = 109,790/x
3. Step 3: Cross multiply
   69,161x = 109,790 × 109,790
4. Step 4: Simplify right side
   69,161x = 12,053,844,100
5. Step 5: Solve for x
   x = 12,053,844,100/69,161
6. Step 6: Final answer
   x = 174,286.72