Finding the Third Proportional to 846,221 and 1,222,729

Step by Step Solution

1. Step 1: Write the proportion equation
   846,221 : 1,222,729 = 1,222,729 : x
2. Step 2: Convert to fraction form
   846,221/1,222,729 = 1,222,729/x
3. Step 3: Cross multiply
   846,221x = 1,222,729 × 1,222,729
4. Step 4: Simplify right side
   846,221x = 1,495,066,207,441
5. Step 5: Solve for x
   x = 1,495,066,207,441/846,221
6. Step 6: Final answer
   x = 1,766,756.21