Finding the Third Proportional to 69,142 and 109,939

Step by Step Solution

1. Step 1: Write the proportion equation
   69,142 : 109,939 = 109,939 : x
2. Step 2: Convert to fraction form
   69,142/109,939 = 109,939/x
3. Step 3: Cross multiply
   69,142x = 109,939 × 109,939
4. Step 4: Simplify right side
   69,142x = 12,086,583,721
5. Step 5: Solve for x
   x = 12,086,583,721/69,142
6. Step 6: Final answer
   x = 174,808.13