Finding the Third Proportional to 727,478 and 1,580,860

Step by Step Solution

1. Step 1: Write the proportion equation
   727,478 : 1,580,860 = 1,580,860 : x
2. Step 2: Convert to fraction form
   727,478/1,580,860 = 1,580,860/x
3. Step 3: Cross multiply
   727,478x = 1,580,860 × 1,580,860
4. Step 4: Simplify right side
   727,478x = 2,499,118,339,600
5. Step 5: Solve for x
   x = 2,499,118,339,600/727,478
6. Step 6: Final answer
   x = 3,435,318.10