Finding the Third Proportional to 800,607 and 1,758,678

Step by Step Solution

1. Step 1: Write the proportion equation
   800,607 : 1,758,678 = 1,758,678 : x
2. Step 2: Convert to fraction form
   800,607/1,758,678 = 1,758,678/x
3. Step 3: Cross multiply
   800,607x = 1,758,678 × 1,758,678
4. Step 4: Simplify right side
   800,607x = 3,092,948,307,684
5. Step 5: Solve for x
   x = 3,092,948,307,684/800,607
6. Step 6: Final answer
   x = 3,863,254.14