Finding the Third Proportional to 15,918.38 and 34,185.75

Step by Step Solution

1. Step 1: Write the proportion equation
   15,918.38 : 34,185.75 = 34,185.75 : x
2. Step 2: Convert to fraction form
   15,918.38/34,185.75 = 34,185.75/x
3. Step 3: Cross multiply
   15,918.38x = 34,185.75 × 34,185.75
4. Step 4: Simplify right side
   15,918.38x = 1,168,665,503.06
5. Step 5: Solve for x
   x = 1,168,665,503.06/15,918.38
6. Step 6: Final answer
   x = 73,416.13