Finding the Third Proportional to 5,218,510 and 8,302,110

Step by Step Solution

1. Step 1: Write the proportion equation
   5,218,510 : 8,302,110 = 8,302,110 : x
2. Step 2: Convert to fraction form
   5,218,510/8,302,110 = 8,302,110/x
3. Step 3: Cross multiply
   5,218,510x = 8,302,110 × 8,302,110
4. Step 4: Simplify right side
   5,218,510x = 68,925,030,452,100
5. Step 5: Solve for x
   x = 68,925,030,452,100/5,218,510
6. Step 6: Final answer
   x = 13,207,798.86