Finding the Third Proportional to 40,631 and 64,883

Step by Step Solution

1. Step 1: Write the proportion equation
   40,631 : 64,883 = 64,883 : x
2. Step 2: Convert to fraction form
   40,631/64,883 = 64,883/x
3. Step 3: Cross multiply
   40,631x = 64,883 × 64,883
4. Step 4: Simplify right side
   40,631x = 4,209,803,689
5. Step 5: Solve for x
   x = 4,209,803,689/40,631
6. Step 6: Final answer
   x = 103,610.63