Finding the Third Proportional to 689,317 and 1,009,944

Step by Step Solution

1. Step 1: Write the proportion equation
   689,317 : 1,009,944 = 1,009,944 : x
2. Step 2: Convert to fraction form
   689,317/1,009,944 = 1,009,944/x
3. Step 3: Cross multiply
   689,317x = 1,009,944 × 1,009,944
4. Step 4: Simplify right side
   689,317x = 1,019,986,883,136
5. Step 5: Solve for x
   x = 1,019,986,883,136/689,317
6. Step 6: Final answer
   x = 1,479,706.55