Finding the Third Proportional to 5,181,480 and 8,127,198

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181,480 : 8,127,198 = 8,127,198 : x
2. Step 2: Convert to fraction form
   5,181,480/8,127,198 = 8,127,198/x
3. Step 3: Cross multiply
   5,181,480x = 8,127,198 × 8,127,198
4. Step 4: Simplify right side
   5,181,480x = 66,051,347,331,204
5. Step 5: Solve for x
   x = 66,051,347,331,204/5,181,480
6. Step 6: Final answer
   x = 12,747,583.19