Finding the Third Proportional to 638,088 and 1,401,964

Step by Step Solution

1. Step 1: Write the proportion equation
   638,088 : 1,401,964 = 1,401,964 : x
2. Step 2: Convert to fraction form
   638,088/1,401,964 = 1,401,964/x
3. Step 3: Cross multiply
   638,088x = 1,401,964 × 1,401,964
4. Step 4: Simplify right side
   638,088x = 1,965,503,057,296
5. Step 5: Solve for x
   x = 1,965,503,057,296/638,088
6. Step 6: Final answer
   x = 3,080,300.93