Finding the Third Proportional to 638,080 and 1,401,948

Step by Step Solution

1. Step 1: Write the proportion equation
   638,080 : 1,401,948 = 1,401,948 : x
2. Step 2: Convert to fraction form
   638,080/1,401,948 = 1,401,948/x
3. Step 3: Cross multiply
   638,080x = 1,401,948 × 1,401,948
4. Step 4: Simplify right side
   638,080x = 1,965,458,194,704
5. Step 5: Solve for x
   x = 1,965,458,194,704/638,080
6. Step 6: Final answer
   x = 3,080,269.24