Finding the Third Proportional to 5,188,271 and 8,288,306

Step by Step Solution

1. Step 1: Write the proportion equation
   5,188,271 : 8,288,306 = 8,288,306 : x
2. Step 2: Convert to fraction form
   5,188,271/8,288,306 = 8,288,306/x
3. Step 3: Cross multiply
   5,188,271x = 8,288,306 × 8,288,306
4. Step 4: Simplify right side
   5,188,271x = 68,696,016,349,636
5. Step 5: Solve for x
   x = 68,696,016,349,636/5,188,271
6. Step 6: Final answer
   x = 13,240,637.65