Finding the Third Proportional to 810,664 and 1,807,736

Step by Step Solution

1. Step 1: Write the proportion equation
   810,664 : 1,807,736 = 1,807,736 : x
2. Step 2: Convert to fraction form
   810,664/1,807,736 = 1,807,736/x
3. Step 3: Cross multiply
   810,664x = 1,807,736 × 1,807,736
4. Step 4: Simplify right side
   810,664x = 3,267,909,445,696
5. Step 5: Solve for x
   x = 3,267,909,445,696/810,664
6. Step 6: Final answer
   x = 4,031,151.56