Finding the Third Proportional to 689,660 and 1,503,472

Step by Step Solution

1. Step 1: Write the proportion equation
   689,660 : 1,503,472 = 1,503,472 : x
2. Step 2: Convert to fraction form
   689,660/1,503,472 = 1,503,472/x
3. Step 3: Cross multiply
   689,660x = 1,503,472 × 1,503,472
4. Step 4: Simplify right side
   689,660x = 2,260,428,054,784
5. Step 5: Solve for x
   x = 2,260,428,054,784/689,660
6. Step 6: Final answer
   x = 3,277,597.74