Finding the Third Proportional to 1,591,123 and 3,542,385

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591,123 : 3,542,385 = 3,542,385 : x
2. Step 2: Convert to fraction form
   1,591,123/3,542,385 = 3,542,385/x
3. Step 3: Cross multiply
   1,591,123x = 3,542,385 × 3,542,385
4. Step 4: Simplify right side
   1,591,123x = 12,548,491,488,225
5. Step 5: Solve for x
   x = 12,548,491,488,225/1,591,123
6. Step 6: Final answer
   x = 7,886,562.82