Finding the Third Proportional to 616,259 and 1,345,931

Step by Step Solution

1. Step 1: Write the proportion equation
   616,259 : 1,345,931 = 1,345,931 : x
2. Step 2: Convert to fraction form
   616,259/1,345,931 = 1,345,931/x
3. Step 3: Cross multiply
   616,259x = 1,345,931 × 1,345,931
4. Step 4: Simplify right side
   616,259x = 1,811,530,256,761
5. Step 5: Solve for x
   x = 1,811,530,256,761/616,259
6. Step 6: Final answer
   x = 2,939,559.92