Finding the Third Proportional to 5,221,680 and 7,982,604

Step by Step Solution

1. Step 1: Write the proportion equation
   5,221,680 : 7,982,604 = 7,982,604 : x
2. Step 2: Convert to fraction form
   5,221,680/7,982,604 = 7,982,604/x
3. Step 3: Cross multiply
   5,221,680x = 7,982,604 × 7,982,604
4. Step 4: Simplify right side
   5,221,680x = 63,721,966,620,816
5. Step 5: Solve for x
   x = 63,721,966,620,816/5,221,680
6. Step 6: Final answer
   x = 12,203,345.79