Finding the Third Proportional to 5,309,083 and 8,198,326

Step by Step Solution

1. Step 1: Write the proportion equation
   5,309,083 : 8,198,326 = 8,198,326 : x
2. Step 2: Convert to fraction form
   5,309,083/8,198,326 = 8,198,326/x
3. Step 3: Cross multiply
   5,309,083x = 8,198,326 × 8,198,326
4. Step 4: Simplify right side
   5,309,083x = 67,212,549,202,276
5. Step 5: Solve for x
   x = 67,212,549,202,276/5,309,083
6. Step 6: Final answer
   x = 12,659,916.83