Finding the Third Proportional to 685,847 and 1,018,835

Step by Step Solution

1. Step 1: Write the proportion equation
   685,847 : 1,018,835 = 1,018,835 : x
2. Step 2: Convert to fraction form
   685,847/1,018,835 = 1,018,835/x
3. Step 3: Cross multiply
   685,847x = 1,018,835 × 1,018,835
4. Step 4: Simplify right side
   685,847x = 1,038,024,757,225
5. Step 5: Solve for x
   x = 1,038,024,757,225/685,847
6. Step 6: Final answer
   x = 1,513,493.18