Finding the Third Proportional to 648,386 and 1,041,774

Step by Step Solution

1. Step 1: Write the proportion equation
   648,386 : 1,041,774 = 1,041,774 : x
2. Step 2: Convert to fraction form
   648,386/1,041,774 = 1,041,774/x
3. Step 3: Cross multiply
   648,386x = 1,041,774 × 1,041,774
4. Step 4: Simplify right side
   648,386x = 1,085,293,067,076
5. Step 5: Solve for x
   x = 1,085,293,067,076/648,386
6. Step 6: Final answer
   x = 1,673,837.91