Finding the Third Proportional to 689,004 and 1,006,290

Step by Step Solution

1. Step 1: Write the proportion equation
   689,004 : 1,006,290 = 1,006,290 : x
2. Step 2: Convert to fraction form
   689,004/1,006,290 = 1,006,290/x
3. Step 3: Cross multiply
   689,004x = 1,006,290 × 1,006,290
4. Step 4: Simplify right side
   689,004x = 1,012,619,564,100
5. Step 5: Solve for x
   x = 1,012,619,564,100/689,004
6. Step 6: Final answer
   x = 1,469,686.05