Finding the Third Proportional to 3,350,987 and 5,178,130

Step by Step Solution

1. Step 1: Write the proportion equation
   3,350,987 : 5,178,130 = 5,178,130 : x
2. Step 2: Convert to fraction form
   3,350,987/5,178,130 = 5,178,130/x
3. Step 3: Cross multiply
   3,350,987x = 5,178,130 × 5,178,130
4. Step 4: Simplify right side
   3,350,987x = 26,813,030,296,900
5. Step 5: Solve for x
   x = 26,813,030,296,900/3,350,987
6. Step 6: Final answer
   x = 8,001,532.17