Finding the Third Proportional to 689,540 and 1,071,462

Step by Step Solution

1. Step 1: Write the proportion equation
   689,540 : 1,071,462 = 1,071,462 : x
2. Step 2: Convert to fraction form
   689,540/1,071,462 = 1,071,462/x
3. Step 3: Cross multiply
   689,540x = 1,071,462 × 1,071,462
4. Step 4: Simplify right side
   689,540x = 1,148,030,817,444
5. Step 5: Solve for x
   x = 1,148,030,817,444/689,540
6. Step 6: Final answer
   x = 1,664,922.73