Finding the Third Proportional to 2,598,998 and 3,999,988

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598,998 : 3,999,988 = 3,999,988 : x
2. Step 2: Convert to fraction form
   2,598,998/3,999,988 = 3,999,988/x
3. Step 3: Cross multiply
   2,598,998x = 3,999,988 × 3,999,988
4. Step 4: Simplify right side
   2,598,998x = 15,999,904,000,144
5. Step 5: Solve for x
   x = 15,999,904,000,144/2,598,998
6. Step 6: Final answer
   x = 6,156,181.73