Finding the Third Proportional to 3,617,709 and 7,865,274

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617,709 : 7,865,274 = 7,865,274 : x
2. Step 2: Convert to fraction form
   3,617,709/7,865,274 = 7,865,274/x
3. Step 3: Cross multiply
   3,617,709x = 7,865,274 × 7,865,274
4. Step 4: Simplify right side
   3,617,709x = 61,862,535,095,076
5. Step 5: Solve for x
   x = 61,862,535,095,076/3,617,709
6. Step 6: Final answer
   x = 17,099,920.17