Finding the Third Proportional to 69,158 and 109,785

Step by Step Solution

1. Step 1: Write the proportion equation
   69,158 : 109,785 = 109,785 : x
2. Step 2: Convert to fraction form
   69,158/109,785 = 109,785/x
3. Step 3: Cross multiply
   69,158x = 109,785 × 109,785
4. Step 4: Simplify right side
   69,158x = 12,052,746,225
5. Step 5: Solve for x
   x = 12,052,746,225/69,158
6. Step 6: Final answer
   x = 174,278.41