Finding the Third Proportional to 3,651,636 and 7,880,632

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,636 : 7,880,632 = 7,880,632 : x
2. Step 2: Convert to fraction form
   3,651,636/7,880,632 = 7,880,632/x
3. Step 3: Cross multiply
   3,651,636x = 7,880,632 × 7,880,632
4. Step 4: Simplify right side
   3,651,636x = 62,104,360,719,424
5. Step 5: Solve for x
   x = 62,104,360,719,424/3,651,636
6. Step 6: Final answer
   x = 17,007,270.36