Finding the Third Proportional to 669,258 and 1,005,372

Step by Step Solution

1. Step 1: Write the proportion equation
   669,258 : 1,005,372 = 1,005,372 : x
2. Step 2: Convert to fraction form
   669,258/1,005,372 = 1,005,372/x
3. Step 3: Cross multiply
   669,258x = 1,005,372 × 1,005,372
4. Step 4: Simplify right side
   669,258x = 1,010,772,858,384
5. Step 5: Solve for x
   x = 1,010,772,858,384/669,258
6. Step 6: Final answer
   x = 1,510,288.80