Finding the Third Proportional to 46,618 and 74,140

Step by Step Solution

1. Step 1: Write the proportion equation
   46,618 : 74,140 = 74,140 : x
2. Step 2: Convert to fraction form
   46,618/74,140 = 74,140/x
3. Step 3: Cross multiply
   46,618x = 74,140 × 74,140
4. Step 4: Simplify right side
   46,618x = 5,496,739,600
5. Step 5: Solve for x
   x = 5,496,739,600/46,618
6. Step 6: Final answer
   x = 117,910.24