Finding the Third Proportional to 3,663,191 and 7,977,208

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,191 : 7,977,208 = 7,977,208 : x
2. Step 2: Convert to fraction form
   3,663,191/7,977,208 = 7,977,208/x
3. Step 3: Cross multiply
   3,663,191x = 7,977,208 × 7,977,208
4. Step 4: Simplify right side
   3,663,191x = 63,635,847,475,264
5. Step 5: Solve for x
   x = 63,635,847,475,264/3,663,191
6. Step 6: Final answer
   x = 17,371,697.92