Finding the Third Proportional to 2,158,769 and 4,649,791

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,769 : 4,649,791 = 4,649,791 : x
2. Step 2: Convert to fraction form
   2,158,769/4,649,791 = 4,649,791/x
3. Step 3: Cross multiply
   2,158,769x = 4,649,791 × 4,649,791
4. Step 4: Simplify right side
   2,158,769x = 21,620,556,343,681
5. Step 5: Solve for x
   x = 21,620,556,343,681/2,158,769
6. Step 6: Final answer
   x = 10,015,224.58