Finding the Third Proportional to 45,905 and 64,647

Step by Step Solution

1. Step 1: Write the proportion equation
   45,905 : 64,647 = 64,647 : x
2. Step 2: Convert to fraction form
   45,905/64,647 = 64,647/x
3. Step 3: Cross multiply
   45,905x = 64,647 × 64,647
4. Step 4: Simplify right side
   45,905x = 4,179,234,609
5. Step 5: Solve for x
   x = 4,179,234,609/45,905
6. Step 6: Final answer
   x = 91,040.95