Finding the Third Proportional to 1,339,389 and 3,161,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339,389 : 3,161,160 = 3,161,160 : x
2. Step 2: Convert to fraction form
   1,339,389/3,161,160 = 3,161,160/x
3. Step 3: Cross multiply
   1,339,389x = 3,161,160 × 3,161,160
4. Step 4: Simplify right side
   1,339,389x = 9,992,932,545,600
5. Step 5: Solve for x
   x = 9,992,932,545,600/1,339,389
6. Step 6: Final answer
   x = 7,460,814.26