Finding the Third Proportional to 5,221,683 and 7,982,607

Step by Step Solution

1. Step 1: Write the proportion equation
   5,221,683 : 7,982,607 = 7,982,607 : x
2. Step 2: Convert to fraction form
   5,221,683/7,982,607 = 7,982,607/x
3. Step 3: Cross multiply
   5,221,683x = 7,982,607 × 7,982,607
4. Step 4: Simplify right side
   5,221,683x = 63,722,014,516,449
5. Step 5: Solve for x
   x = 63,722,014,516,449/5,221,683
6. Step 6: Final answer
   x = 12,203,347.95