Finding the Third Proportional to 40,365 and 69,904

Step by Step Solution

1. Step 1: Write the proportion equation
   40,365 : 69,904 = 69,904 : x
2. Step 2: Convert to fraction form
   40,365/69,904 = 69,904/x
3. Step 3: Cross multiply
   40,365x = 69,904 × 69,904
4. Step 4: Simplify right side
   40,365x = 4,886,569,216
5. Step 5: Solve for x
   x = 4,886,569,216/40,365
6. Step 6: Final answer
   x = 121,059.56