Finding the Third Proportional to 5,149,856 and 7,791,040

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,856 : 7,791,040 = 7,791,040 : x
2. Step 2: Convert to fraction form
   5,149,856/7,791,040 = 7,791,040/x
3. Step 3: Cross multiply
   5,149,856x = 7,791,040 × 7,791,040
4. Step 4: Simplify right side
   5,149,856x = 60,700,304,281,600
5. Step 5: Solve for x
   x = 60,700,304,281,600/5,149,856
6. Step 6: Final answer
   x = 11,786,796.42