Finding the Third Proportional to 68,994 and 140,904

Step by Step Solution

1. Step 1: Write the proportion equation
   68,994 : 140,904 = 140,904 : x
2. Step 2: Convert to fraction form
   68,994/140,904 = 140,904/x
3. Step 3: Cross multiply
   68,994x = 140,904 × 140,904
4. Step 4: Simplify right side
   68,994x = 19,853,937,216
5. Step 5: Solve for x
   x = 19,853,937,216/68,994
6. Step 6: Final answer
   x = 287,763.24