Finding the Third Proportional to 3,645,597 and 7,977,426

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,597 : 7,977,426 = 7,977,426 : x
2. Step 2: Convert to fraction form
   3,645,597/7,977,426 = 7,977,426/x
3. Step 3: Cross multiply
   3,645,597x = 7,977,426 × 7,977,426
4. Step 4: Simplify right side
   3,645,597x = 63,639,325,585,476
5. Step 5: Solve for x
   x = 63,639,325,585,476/3,645,597
6. Step 6: Final answer
   x = 17,456,489.45