Finding the Third Proportional to 3,645,560 and 7,977,343

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,560 : 7,977,343 = 7,977,343 : x
2. Step 2: Convert to fraction form
   3,645,560/7,977,343 = 7,977,343/x
3. Step 3: Cross multiply
   3,645,560x = 7,977,343 × 7,977,343
4. Step 4: Simplify right side
   3,645,560x = 63,638,001,339,649
5. Step 5: Solve for x
   x = 63,638,001,339,649/3,645,560
6. Step 6: Final answer
   x = 17,456,303.38