Finding the Third Proportional to 5,189,856 and 8,264,464

Step by Step Solution

1. Step 1: Write the proportion equation
   5,189,856 : 8,264,464 = 8,264,464 : x
2. Step 2: Convert to fraction form
   5,189,856/8,264,464 = 8,264,464/x
3. Step 3: Cross multiply
   5,189,856x = 8,264,464 × 8,264,464
4. Step 4: Simplify right side
   5,189,856x = 68,301,365,207,296
5. Step 5: Solve for x
   x = 68,301,365,207,296/5,189,856
6. Step 6: Final answer
   x = 13,160,551.12