Finding the Third Proportional to 714,916 and 1,488,638

Step by Step Solution

1. Step 1: Write the proportion equation
   714,916 : 1,488,638 = 1,488,638 : x
2. Step 2: Convert to fraction form
   714,916/1,488,638 = 1,488,638/x
3. Step 3: Cross multiply
   714,916x = 1,488,638 × 1,488,638
4. Step 4: Simplify right side
   714,916x = 2,216,043,095,044
5. Step 5: Solve for x
   x = 2,216,043,095,044/714,916
6. Step 6: Final answer
   x = 3,099,725.14