Finding the Third Proportional to 5,456,700 and 8,559,939

Step by Step Solution

1. Step 1: Write the proportion equation
   5,456,700 : 8,559,939 = 8,559,939 : x
2. Step 2: Convert to fraction form
   5,456,700/8,559,939 = 8,559,939/x
3. Step 3: Cross multiply
   5,456,700x = 8,559,939 × 8,559,939
4. Step 4: Simplify right side
   5,456,700x = 73,272,555,683,721
5. Step 5: Solve for x
   x = 73,272,555,683,721/5,456,700
6. Step 6: Final answer
   x = 13,427,997.82