Finding the Third Proportional to 42,012 and 65,904

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012 : 65,904 = 65,904 : x
2. Step 2: Convert to fraction form
   42,012/65,904 = 65,904/x
3. Step 3: Cross multiply
   42,012x = 65,904 × 65,904
4. Step 4: Simplify right side
   42,012x = 4,343,337,216
5. Step 5: Solve for x
   x = 4,343,337,216/42,012
6. Step 6: Final answer
   x = 103,383.25