Finding the Third Proportional to 3,645,612 and 7,977,438

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,612 : 7,977,438 = 7,977,438 : x
2. Step 2: Convert to fraction form
   3,645,612/7,977,438 = 7,977,438/x
3. Step 3: Cross multiply
   3,645,612x = 7,977,438 × 7,977,438
4. Step 4: Simplify right side
   3,645,612x = 63,639,517,043,844
5. Step 5: Solve for x
   x = 63,639,517,043,844/3,645,612
6. Step 6: Final answer
   x = 17,456,470.15