Finding the Third Proportional to 605,385 and 1,315,746

Step by Step Solution

1. Step 1: Write the proportion equation
   605,385 : 1,315,746 = 1,315,746 : x
2. Step 2: Convert to fraction form
   605,385/1,315,746 = 1,315,746/x
3. Step 3: Cross multiply
   605,385x = 1,315,746 × 1,315,746
4. Step 4: Simplify right side
   605,385x = 1,731,187,536,516
5. Step 5: Solve for x
   x = 1,731,187,536,516/605,385
6. Step 6: Final answer
   x = 2,859,647.23