Finding the Third Proportional to 689,330 and 1,009,965

Step by Step Solution

1. Step 1: Write the proportion equation
   689,330 : 1,009,965 = 1,009,965 : x
2. Step 2: Convert to fraction form
   689,330/1,009,965 = 1,009,965/x
3. Step 3: Cross multiply
   689,330x = 1,009,965 × 1,009,965
4. Step 4: Simplify right side
   689,330x = 1,020,029,301,225
5. Step 5: Solve for x
   x = 1,020,029,301,225/689,330
6. Step 6: Final answer
   x = 1,479,740.18