Finding the Third Proportional to 647,240 and 1,400,464

Step by Step Solution

1. Step 1: Write the proportion equation
   647,240 : 1,400,464 = 1,400,464 : x
2. Step 2: Convert to fraction form
   647,240/1,400,464 = 1,400,464/x
3. Step 3: Cross multiply
   647,240x = 1,400,464 × 1,400,464
4. Step 4: Simplify right side
   647,240x = 1,961,299,415,296
5. Step 5: Solve for x
   x = 1,961,299,415,296/647,240
6. Step 6: Final answer
   x = 3,030,250.63