Finding the Third Proportional to 499,972 and 1,099,988

Step by Step Solution

1. Step 1: Write the proportion equation
   499,972 : 1,099,988 = 1,099,988 : x
2. Step 2: Convert to fraction form
   499,972/1,099,988 = 1,099,988/x
3. Step 3: Cross multiply
   499,972x = 1,099,988 × 1,099,988
4. Step 4: Simplify right side
   499,972x = 1,209,973,600,144
5. Step 5: Solve for x
   x = 1,209,973,600,144/499,972
6. Step 6: Final answer
   x = 2,420,082.72