Finding the Third Proportional to 42,687 and 64,044

Step by Step Solution

1. Step 1: Write the proportion equation
   42,687 : 64,044 = 64,044 : x
2. Step 2: Convert to fraction form
   42,687/64,044 = 64,044/x
3. Step 3: Cross multiply
   42,687x = 64,044 × 64,044
4. Step 4: Simplify right side
   42,687x = 4,101,633,936
5. Step 5: Solve for x
   x = 4,101,633,936/42,687
6. Step 6: Final answer
   x = 96,086.25