Finding the Third Proportional to 638,168 and 1,382,000

Step by Step Solution

1. Step 1: Write the proportion equation
   638,168 : 1,382,000 = 1,382,000 : x
2. Step 2: Convert to fraction form
   638,168/1,382,000 = 1,382,000/x
3. Step 3: Cross multiply
   638,168x = 1,382,000 × 1,382,000
4. Step 4: Simplify right side
   638,168x = 1,909,924,000,000
5. Step 5: Solve for x
   x = 1,909,924,000,000/638,168
6. Step 6: Final answer
   x = 2,992,823.21