Finding the Third Proportional to 5,390,173 and 8,076,939

Step by Step Solution

1. Step 1: Write the proportion equation
   5,390,173 : 8,076,939 = 8,076,939 : x
2. Step 2: Convert to fraction form
   5,390,173/8,076,939 = 8,076,939/x
3. Step 3: Cross multiply
   5,390,173x = 8,076,939 × 8,076,939
4. Step 4: Simplify right side
   5,390,173x = 65,236,943,609,721
5. Step 5: Solve for x
   x = 65,236,943,609,721/5,390,173
6. Step 6: Final answer
   x = 12,102,940.59