Finding the Third Proportional to 43,656 and 69,240

Step by Step Solution

1. Step 1: Write the proportion equation
   43,656 : 69,240 = 69,240 : x
2. Step 2: Convert to fraction form
   43,656/69,240 = 69,240/x
3. Step 3: Cross multiply
   43,656x = 69,240 × 69,240
4. Step 4: Simplify right side
   43,656x = 4,794,177,600
5. Step 5: Solve for x
   x = 4,794,177,600/43,656
6. Step 6: Final answer
   x = 109,817.15