Finding the Third Proportional to 5,189,864 and 8,264,480

Step by Step Solution

1. Step 1: Write the proportion equation
   5,189,864 : 8,264,480 = 8,264,480 : x
2. Step 2: Convert to fraction form
   5,189,864/8,264,480 = 8,264,480/x
3. Step 3: Cross multiply
   5,189,864x = 8,264,480 × 8,264,480
4. Step 4: Simplify right side
   5,189,864x = 68,301,629,670,400
5. Step 5: Solve for x
   x = 68,301,629,670,400/5,189,864
6. Step 6: Final answer
   x = 13,160,581.79