Finding the Third Proportional to 3,591,288 and 7,880,424

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,288 : 7,880,424 = 7,880,424 : x
2. Step 2: Convert to fraction form
   3,591,288/7,880,424 = 7,880,424/x
3. Step 3: Cross multiply
   3,591,288x = 7,880,424 × 7,880,424
4. Step 4: Simplify right side
   3,591,288x = 62,101,082,419,776
5. Step 5: Solve for x
   x = 62,101,082,419,776/3,591,288
6. Step 6: Final answer
   x = 17,292,147.67