Finding the Third Proportional to 689,666 and 1,503,484

Step by Step Solution

1. Step 1: Write the proportion equation
   689,666 : 1,503,484 = 1,503,484 : x
2. Step 2: Convert to fraction form
   689,666/1,503,484 = 1,503,484/x
3. Step 3: Cross multiply
   689,666x = 1,503,484 × 1,503,484
4. Step 4: Simplify right side
   689,666x = 2,260,464,138,256
5. Step 5: Solve for x
   x = 2,260,464,138,256/689,666
6. Step 6: Final answer
   x = 3,277,621.54