Finding the Third Proportional to 5,390,473 and 8,141,853

Step by Step Solution

1. Step 1: Write the proportion equation
   5,390,473 : 8,141,853 = 8,141,853 : x
2. Step 2: Convert to fraction form
   5,390,473/8,141,853 = 8,141,853/x
3. Step 3: Cross multiply
   5,390,473x = 8,141,853 × 8,141,853
4. Step 4: Simplify right side
   5,390,473x = 66,289,770,273,609
5. Step 5: Solve for x
   x = 66,289,770,273,609/5,390,473
6. Step 6: Final answer
   x = 12,297,579.50