Finding the Third Proportional to 3,651,658 and 7,880,672

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,658 : 7,880,672 = 7,880,672 : x
2. Step 2: Convert to fraction form
   3,651,658/7,880,672 = 7,880,672/x
3. Step 3: Cross multiply
   3,651,658x = 7,880,672 × 7,880,672
4. Step 4: Simplify right side
   3,651,658x = 62,104,991,171,584
5. Step 5: Solve for x
   x = 62,104,991,171,584/3,651,658
6. Step 6: Final answer
   x = 17,007,340.55