Finding the Third Proportional to 5,149,858 and 7,791,043

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,858 : 7,791,043 = 7,791,043 : x
2. Step 2: Convert to fraction form
   5,149,858/7,791,043 = 7,791,043/x
3. Step 3: Cross multiply
   5,149,858x = 7,791,043 × 7,791,043
4. Step 4: Simplify right side
   5,149,858x = 60,700,351,027,849
5. Step 5: Solve for x
   x = 60,700,351,027,849/5,149,858
6. Step 6: Final answer
   x = 11,786,800.92