Finding the Third Proportional to 676,870 and 1,487,612

Step by Step Solution

1. Step 1: Write the proportion equation
   676,870 : 1,487,612 = 1,487,612 : x
2. Step 2: Convert to fraction form
   676,870/1,487,612 = 1,487,612/x
3. Step 3: Cross multiply
   676,870x = 1,487,612 × 1,487,612
4. Step 4: Simplify right side
   676,870x = 2,212,989,462,544
5. Step 5: Solve for x
   x = 2,212,989,462,544/676,870
6. Step 6: Final answer
   x = 3,269,445.33