Finding the Third Proportional to 2,476,870 and 3,487,978

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476,870 : 3,487,978 = 3,487,978 : x
2. Step 2: Convert to fraction form
   2,476,870/3,487,978 = 3,487,978/x
3. Step 3: Cross multiply
   2,476,870x = 3,487,978 × 3,487,978
4. Step 4: Simplify right side
   2,476,870x = 12,165,990,528,484
5. Step 5: Solve for x
   x = 12,165,990,528,484/2,476,870
6. Step 6: Final answer
   x = 4,911,840.56