Finding the Third Proportional to 7,769,615 and 12,161,322

Step by Step Solution

1. Step 1: Write the proportion equation
   7,769,615 : 12,161,322 = 12,161,322 : x
2. Step 2: Convert to fraction form
   7,769,615/12,161,322 = 12,161,322/x
3. Step 3: Cross multiply
   7,769,615x = 12,161,322 × 12,161,322
4. Step 4: Simplify right side
   7,769,615x = 147,897,752,787,684
5. Step 5: Solve for x
   x = 147,897,752,787,684/7,769,615
6. Step 6: Final answer
   x = 19,035,403.01