Finding the Third Proportional to 5,149,860 and 7,791,046

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,860 : 7,791,046 = 7,791,046 : x
2. Step 2: Convert to fraction form
   5,149,860/7,791,046 = 7,791,046/x
3. Step 3: Cross multiply
   5,149,860x = 7,791,046 × 7,791,046
4. Step 4: Simplify right side
   5,149,860x = 60,700,397,774,116
5. Step 5: Solve for x
   x = 60,700,397,774,116/5,149,860
6. Step 6: Final answer
   x = 11,786,805.42