Finding the Third Proportional to 689,658 and 1,503,468

Step by Step Solution

1. Step 1: Write the proportion equation
   689,658 : 1,503,468 = 1,503,468 : x
2. Step 2: Convert to fraction form
   689,658/1,503,468 = 1,503,468/x
3. Step 3: Cross multiply
   689,658x = 1,503,468 × 1,503,468
4. Step 4: Simplify right side
   689,658x = 2,260,416,027,024
5. Step 5: Solve for x
   x = 2,260,416,027,024/689,658
6. Step 6: Final answer
   x = 3,277,589.80