Finding the Third Proportional to 3,117,636 and 7,284,206

Step by Step Solution

1. Step 1: Write the proportion equation
   3,117,636 : 7,284,206 = 7,284,206 : x
2. Step 2: Convert to fraction form
   3,117,636/7,284,206 = 7,284,206/x
3. Step 3: Cross multiply
   3,117,636x = 7,284,206 × 7,284,206
4. Step 4: Simplify right side
   3,117,636x = 53,059,657,050,436
5. Step 5: Solve for x
   x = 53,059,657,050,436/3,117,636
6. Step 6: Final answer
   x = 17,019,195.65