Finding the Third Proportional to 711,258 and 1,090,644

Step by Step Solution

1. Step 1: Write the proportion equation
   711,258 : 1,090,644 = 1,090,644 : x
2. Step 2: Convert to fraction form
   711,258/1,090,644 = 1,090,644/x
3. Step 3: Cross multiply
   711,258x = 1,090,644 × 1,090,644
4. Step 4: Simplify right side
   711,258x = 1,189,504,334,736
5. Step 5: Solve for x
   x = 1,189,504,334,736/711,258
6. Step 6: Final answer
   x = 1,672,395.02