Finding the Third Proportional to 3,655,167 and 7,920,507

Step by Step Solution

1. Step 1: Write the proportion equation
   3,655,167 : 7,920,507 = 7,920,507 : x
2. Step 2: Convert to fraction form
   3,655,167/7,920,507 = 7,920,507/x
3. Step 3: Cross multiply
   3,655,167x = 7,920,507 × 7,920,507
4. Step 4: Simplify right side
   3,655,167x = 62,734,431,137,049
5. Step 5: Solve for x
   x = 62,734,431,137,049/3,655,167
6. Step 6: Final answer
   x = 17,163,218.85