Finding the Third Proportional to 786,456 and 1,675,890

Step by Step Solution

1. Step 1: Write the proportion equation
   786,456 : 1,675,890 = 1,675,890 : x
2. Step 2: Convert to fraction form
   786,456/1,675,890 = 1,675,890/x
3. Step 3: Cross multiply
   786,456x = 1,675,890 × 1,675,890
4. Step 4: Simplify right side
   786,456x = 2,808,607,292,100
5. Step 5: Solve for x
   x = 2,808,607,292,100/786,456
6. Step 6: Final answer
   x = 3,571,219.87