Finding the Third Proportional to 723,398 and 1,588,678

Step by Step Solution

1. Step 1: Write the proportion equation
   723,398 : 1,588,678 = 1,588,678 : x
2. Step 2: Convert to fraction form
   723,398/1,588,678 = 1,588,678/x
3. Step 3: Cross multiply
   723,398x = 1,588,678 × 1,588,678
4. Step 4: Simplify right side
   723,398x = 2,523,897,787,684
5. Step 5: Solve for x
   x = 2,523,897,787,684/723,398
6. Step 6: Final answer
   x = 3,488,947.70